Updated on 2023/06/01

写真a

 
TAKAHASHI Kin'ya
 
Scopus Paper Info  
Total Paper Count: 0  Total Citation Count: 0  h-index: 5

Citation count denotes the number of citations in papers published for a particular year.

Affiliation
Faculty of Computer Science and Systems Engineering Department of Physics and Information Technology
Job
Professor
External link

Research Interests

  • Quantum Chaos

  • Musical Acoustics

  • Aerodynamic sound

  • Nonlinear Physics

Research Areas

  • Natural Science / Mathematical physics and fundamental theory of condensed matter physics  / Nonlinear Dynamics

  • Others / Others  / Nonlinear Dynamics

Undergraduate Education

  • 1981.03   Waseda University   Faculty of Science and Engineering   Department of Applied Physics   Graduated   Japan

Post Graduate Education

  • 1986.03   Waseda University   Graduate School, Division of Science and Engineering   Doctoral Program   Completed   Japan

Degree

  • Waseda University  -  Doctor of Science   1986.03

Biography in Kyutech

  • 2016.04
    -
    2018.03
     

    Kyushu Institute of Technology   Organization for Information Infrastructure   University Library   Iizuka Branch Library  

  • 2019.04
     

    Kyushu Institute of Technology   Faculty of Computer Science and Systems Engineering   Department of Physics and Information Technology   Professor  

  • 2012.05
    -
    2019.03
     

    Kyushu Institute of Technology   Faculty of Computer Science and Systems Engineering   Department of Mechanical Information Science and Technology   Professor  

  • 2008.04
    -
    2012.04
     

    Kyushu Institute of Technology   Faculty of Computer Science and Systems Engineering   Associate Professor  

Papers

  • Two-Delay System Including the Logistic Map: Disappearance of Attractors Owing to Anomalous Bifurcation Process Reviewed

    Takahashi K., Kobayashi T.

    Journal of the Physical Society of Japan   91 ( 10 )   104007   2022.10

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.7566/JPSJ.91.104007

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85150899320&origin=inward

  • Effects of resonance states in barrier region on non-exponential decay of wave-packets scattered by rounded-rectangular potentials Reviewed International journal

    Takahashi K.

    Journal of Physics A: Mathematical and Theoretical   54 ( 47 )   2021.11

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    The decay processes of wave-packets scattered by periodically perturbed and unperturbed rounded-rectangular potentials are studied numerically and theoretically, when the widths of the potentials L are very large. For the case of the unperturbed potentials, four different stages successively arise in the decay process of the wave in the potential region: Two pre-exponential decays, namely power-law decay of t-3 and oscillating power-law decay, exponential decay and post-exponential decay, which is also power-law decay of t-3. The postexponential decay is usually extremely small in magnitude. The characteristics of the pre-exponential and exponential decays are explained with the properties of resonance states, i.e. the Gamow states, for the unperturbed system. The rate of the exponential decay is determined by the imaginary part of the eigenenergy of the first resonance state. For the two pre-exponential decays, the ending time of the t-3 decay is a linear function of L and that of the oscillating power-law decay is proportional to L3. In the limit of L→∞, the t-3 decay is observed persistently, namely the decay for the rounded-step potential. For the perturbed potentials, even if the average energy of an initial wave-packet is relatively smaller than the oscillating potential, the noninstanton tunnelling, i.e. the multi-quanta absorption tunnelling, raises the tunnelling wave component up to the oscillating top of the rounded-rectangular potential, and the tunnelling probability rapidly increases with the perturbation strength. The properties of the resonance states are almost the same as those of the Gamow states because of the flatness of the potential top. As a result, the decay process after the tunnelling is almost the same as that for the unperturbed system. It is suggested that the tunnelling amplitude and tunnelling time, namely the amplitude and period of the pre-exponential decay, can be controlled by the perturbation strength and the potential width, respectively.

    DOI： 10.1088/1751-8121/ac265a

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85119470404&origin=inward

  • Three-dimensional numerical analysis of acoustic energy absorption and generation in an air-jet instrument based on Howe's energy corollary Reviewed International journal

    Tabata R., Matsuda R., Koiwaya T., Iwagami S., Midorikawa H., Kobayashi T., Takahashi K.

    Journal of the Acoustical Society of America   149 ( 6 )   4000 - 4012   2021.06

    　More details

    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    The sounding mechanism of a recorder-like air-jet instrument at low Strouhal number is numerically investigated by three-dimensional direct aeroacoustic simulation and acoustic simulation. Howe's energy corollary is applied to estimate the acoustic energy generation and absorption induced by an oscillating jet and vortex shedding. The quantitative results show that the main acoustic energy generation occurs in the jet downstream, and the absorption occurs in the jet upstream. It is found that the region defined by the Q-criterion identifies the main acoustic energy generation (absorption) region in the downstream (upstream) region of the jet. The results indicate that the vortex shedding mainly induced by the jet deflection gives additional contributions to the acoustic energy absorption. The shed vortices affect the temporal structure of the acoustic energy transfer, in particular, the timing of the double peaks with respect to the jet displacement. If we focus only on the air-jet, the dominant peak is observed when the jet crosses the edge from the inside to the outside of the pipe, as reported in previous experimental works. However, when we include the contributions of shed vortices, the dominant peak appears when the jet dives under the edge, which is consistent with the jet-drive model.

    DOI： 10.1121/10.0005133

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85107757372&origin=inward

  • Numerical study on edge tone with compressible direct numerical simulation: Sound intensity and jet motion Reviewed International journal

    Iwagami S., Tabata R., Kobayashi T., Hattori Y., Takahashi K.

    International Journal of Aeroacoustics   20 ( 3-4 )   283 - 316   2021.06

    　More details

    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    A two-dimensional model of the edge tone is studied by a highly accurate and reliable method of direct numerical simulation of the compressible Navier-Stokes equations, and used to verify key features observed in previous experimental and numerical studies, and to discover new features related to the jet motion and the edge tone generation mechanism. The first and second modes of the edge tone that are numerically reproduced agree well with Brown’s equation. In the mode transition region, dynamical mode transition is observed at a fixed jet velocity. For both first and second modes, the pressure distributions are antisymmetric with respect to the edge plate, and the sound intensity is proportional to the fifth power of the jet velocity. These results are consistent with the edge tone being radiated from a dipole-like source. Spatial profiles of the velocity and the velocity variance of the oscillating jet are also investigated for each mode over a range of the jet velocity including the mode transition regime. The amplitude of the velocity oscillation becomes constant with increasing jet velocity, while a measure of the amplitude of the velocity variance profile, which is introduced to characterize the strength of the jet fluctuation and named the ’fluctuation strength’, is proportional to the third power of the jet velocity. Some properties of the fluctuation strength correspond to properties of the sound intensity, including the first mode having larger amplitude than the second mode, and the way of deviating from the power law at smaller values of jet velocity and in the mode transition region. It is proposed that the third-power law exhibited by behavior of the fluctuation strength could be related to the increase of the skewness observed in the velocity profile with increase of jet velocity, and a model calculation is used to support this proposal.

    DOI： 10.1177/1475472X211003296

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85103164200&origin=inward

  • Numerical Study on Wind Instruments with Compressible Direct Numerical Simulation Reviewed

    Y. Nakahara,R. Sumita, R. Tabata, S. Iwagami, T. Nanri, T. Kobayashi, Y. Hattori, K. Takahashi

    Proceedings of the Twenty-second International Symposium on Advanced Fluid Information   163 - 164   2022.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2022.11.09  -  2022.11.11

  • Aeroacoustic analysis of oboe reeds with compressible direct numerical simulation Reviewed International journal

    Nakahara Y., Sumita R., Tabata R., Iwagami S., Nanri T., Kobayashi T., Hattori Y., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153766710&origin=inward

  • Numerical study of the feedback mechanism of the edge tone Reviewed International journal

    Onomata T., Iwagami S., Tabata R., Ohno T., Nanri T., Kabayashi T., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153736486&origin=inward

  • Numerical study of a French horn mouthpiece accompanied by vibrating lips and an oral cavity with compressible direct numerical simulation Reviewed International journal

    Sumita R., Tabata R., Iwagami S., Nakahara Y., Nanri T., Kobayashi T., Hattori Y., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153744741&origin=inward

  • Numerical approach for aerodynamics around two tone holes of woodwind instruments Reviewed International journal

    Takanami S., Tabata R., Iwagami S., Ohno T., Nanri T., Kobayashi T., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153703443&origin=inward

  • Compressible fluid analysis on basic properties of a thermoacoustic equipment Reviewed International journal

    Tashima Y., Ohno T., Nanri T., Kobayashi T., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153742126&origin=inward

  • Aeroacoustic analysis of port noise by using a three-dimensional numerical model of a bass reflex speaker system Reviewed International journal

    Uryuu K., Tabata R., Ohno T., Nanri T., Kobayashi T., Takahashi K.

    Proceedings of the International Congress on Acoustics   2022.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    韓国   Gyeongju   2022.10.24  -  2022.10.28

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85153783777&origin=inward

  • Numerical study of a French Horn Mouthpiece with Compressible Direct Numerical Simulation Reviewed

    R.Sumita,R.Tabata, T.Kobayashi, K.Takahashi, Y.Hattori

    Proceedings of the Twenty-first International Symposium on Advanced Fluid Information   175 - 177   2021.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2021.10.27  -  2021.10.29

  • Numerical study on sounding mechanism of air-jet instruments with compressible fluid simulation Invited Reviewed

    K. Takahashi, R. Tabata, S. Iwagami, S. Ikoga, R. Sumita, S. Takanami, T. Kobayashi, Y. Hattori

    Proceedings of eighteenth International Conference on Flow Dynamics   637 - 639   2021.10

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2021.10.27  -  2021.10.29

  • Numerical analysis of three-dimensional model of flue organ pipe Invited Reviewed

    S. Ikoga, R. Tabata,S. Iwagami, T. Kobayashi,K.Takahashi

    Proceedings of eighteenth International Conference on Flow Dynamics   642 - 643   2021.10

    　More details

    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2021.10.27  -  2021.10.29

  • Numerical study of note transition with fingering on a woodwind instrument Invited Reviewed

    S. Takanami, T. Kobayashi,K.Takahashi

    Proceedings of eighteenth International Conference on Flow Dynamics   640 - 641   2021.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2021.10.27  -  2021.10.29

  • Numerical Analysis of Air-Jet Instrument's Sound Sources by Compressible Direct Numerical Simulation Reviewed

    472 - 473   2020.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2020.10.28  -  2020.10.30

  • Numerical Study of a French Horn Mouthpiece with Compressible Direct Numerical Simulation Reviewed

    169 - 170   2020.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2020.10.28  -  2020.10.30

  • Performance Evaluation of Acoustic FDTD(2,4) Method Using Distributed Shared Memory System mSMS Reviewed

    R. Tabata, H. Midorikawa, K. Takahashi

    International Conference on High Performance Computing in Asia-Pacific Region   2020.01

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

  • クラリネットのレジスターホールの機能

    高橋公也, 合屋佳奈, 合屋沙耶, 堤元気, 小林泰三

    音楽音響研究会資料   38 ( 8 )   21 - 26   2020.01

    　More details

    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • 管楽器の大規模流体音響解析 Invited

    髙橋公也

    サウンド   ( 35 )   9 - 13   2020.01

    　More details

    Authorship：Lead author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

  • Numerical Study on Air-jet Instruments Compared with Edge Tone Reviewed

    160 - 161   2019.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2019.11.06  -  2019.11.08

  • Numerical Study on Relation between the Jet Ocsillation and Acoustic Pressure in Edge tone Reviewed

    660 - 661   2019.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2019.11.06  -  2019.11.08

  • エアジェット楽器の流体音響解析

    高橋公也, 岩上翔, 田畑諒也, 岡田紘彰, 小岩屋寿晃, 小林泰三, 高見利也

    音楽音響研究会資料   38 ( 6 )   105 - 110   2019.10

    　More details

    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • Numerical study on the function of the register hole of the clarinet Invited Reviewed International journal

    K. TAKAHASHI, K. GOYA, S. GOYA, G. TSUTSUMI, T. KOBAYASHI

    Proceedings of ISMA2019   219 - 226   2019.09

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)

    Germany   Detmold   2019.09.13  -  2019.09.17

  • Numerical study of synchronization phenomena of an air-jet instrument using finite-difference lattice boltzmann method Reviewed International journal

    R. Tabata, T. Kobayash, K. Takahashi

    Proceedings of ISMA2019   283 - 290   2019.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Germany   Detmold   2019.09.13  -  2019.09.17

  • Numerical study on unsteady fluid flow and acoustic field in the clarinet mouthpiece with the compressible LES Reviewed International journal

    T. KOIWAYA, S. IWAGAMI, T. KOBAYASHI, K. TAKAHASHI

    Proceedings of ISMA2019   227 - 233   2019.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Germany   Detmold   2019.09.13  -  2019.09.17

  • Numerical Simulation of Aerodynamics Sound in an Ocarina Model Invited Reviewed International journal

    Proceedings of ISMA2019   251 - 256   2019.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Germany   Detmold   2019.09.13  -  2019.09.17

  • Anti-phase synchronization between the oscillation in the pipe and that in the foot of a flue organ pipe Reviewed

    Takahashi K., Iwagami S., Tateishi S., Tsutsumi G., Kobahashi T., Takami T.

    Proceedings of the International Congress on Acoustics   2019-September   5565 - 5572   2019.09

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)

    © 2019 Proceedings of the International Congress on Acoustics. All rights reserved. In the recent work (Acoust. Sci. & Tech. vol.40, No.1 pp.29-39 (2019)), we found with the numerical study of a 2D flue organ pipe model that the foot works as a Helmholtz resonator. When the frequency of acoustic oscillation in the pipe is higher than the resonance frequency of the Helmholtz resonator by almost the full-width at half-maximum, the most stable oscillation is observed, and the oscillation in the foot is anti-synchronized with that in the pipe. However, if the Helmholtz resonance frequency is nearly equal to the acoustic oscillation frequency, the oscillations in the pipe and foot become rather unstable and the oscillation in the foot lags behind that in the pipe by nearly p /2. In this paper, we study the phase relations among the pressure oscillation in the foot, that in the pipe, and the hydrodynamic oscillation of the jet, which are the key to understanding the mechanism of stabilizing and destabilizing oscillations of the flue organ pipe.

    DOI： 10.18154/RWTH-CONV-239207

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099330330&origin=inward

  • Reproducibility of mode transition of edge tone with DNS and LES Reviewed

    Iwagami S., Kobayashi T., Takahashi K., Hattori Y.

    Proceedings of the International Congress on Acoustics   2019-September   5573 - 5579   2019.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    © 2019 Proceedings of the International Congress on Acoustics. All rights reserved. A jet attacking a edge oscillates spontaneously, and generates aerodynamic sound called edge tone. The edge tone is the sound source of air-jet instruments like a recorder and flute. The jet oscillation has several modes. While one of the modes is selected, the frequency increases linearly with the jet velocity. When the jet velocity exceeds a threshold, the mode transition arises, and it is hysteretic. The mode transition induces sudden changes of the frequency and the sound energy. Therefore, the reproducibility of the mode transition with a numerical calculation is crucial for understanding the mechanism of edge tone. In this study, the 2D model of edge tone is investigated with compressible DNS and LES. The DNS adopted in our study is an exact method without any artificial viscosity terms. The mode transition can be accurately reproduced with DNS. On the other hand, in some cases of calculations with LES, the mode transition cannot be reproduced even though the calculation is not broken down. We discuss the details of this problem.

    DOI： 10.18154/RWTH-CONV-239501

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099330104&origin=inward

  • Numerical Approach for Aerodynamics around a tone hole of woodwind instruments: An example solving moving boundary problems with topologically change Reviewed

    Kobayashi T., Wakasa D., Iwagami S., Takami T., Takahashi K.

    Proceedings of the International Congress on Acoustics   2019-September   6483 - 6489   2019.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    © 2019 Proceedings of the International Congress on Acoustics. All rights reserved. In this paper, we discuss the numerical reproducibility of the compressible fluid behavior around a tone hole of woodwind instruments by using compressible Large Eddy Simulation (LES). In particular, we focus on the situation that the tone hole is opened and closed with moving a pad above the tone hole, which is regarded as a moving boundary problem with topology change. Our numerical model is based on a 2D analog of Keefe's experimental model, which has a tone hole placed at the center of the resonance tube. To reproduce the opening and closing the tone hole, the pad is moved continuously. Actually, the position of the pad was continuously changed in the order of "open - close - open". Our numerical results agree rather well with Keefe's experimental results. We solved the moving boundary problem with topology change under the situation of acoustics of fluid-structure interaction, and reproduced transitions between resonance and non-resonance states. In addition, the details of complex vortices near the tone holes clarified by this numerical calculation will be reported.

    DOI： 10.18154/RWTH-CONV-239557

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099330469&origin=inward

  • シングルリード木管楽器のマウスピース内の流体音響解析

    小岩屋寿晃, 岩上翔, 小林泰三, 高橋公也

    音楽音響研究会資料   37 ( 9 )   35 - 40   2019.02

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • オカリナの流体音響解析

    岡田紘彰, 岩上翔, 小林泰三, 高橋公也

    音楽音響研究会資料   37 ( 9 )   65 - 70   2019.02

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • Mode selection rules and bifurcation diagrams for two-delay systems: Underlying mechanism controlled by embedded multidimensional maps Reviewed

    88 ( 2 )   2019.02

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.7566/JPSJ.88.024002

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85060530624&origin=inward

  • Role of the foot chamber in the sounding mechanism of a flue organ pipe Reviewed

    Tateishi S., Iwagami S., Tsutsumi G., Kobayashi T., Takami T., Takahashi K.

    Acoustical Science and Technology   40 ( 1 )   29 - 39   2019.01

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1250/ast.40.29

    Scopus

    CiNii Article

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85060080474&origin=inward

  • Numerical Study on a Flue Organ Pipe with Compressible LES Focusing on the Role of the Foot Chamber Reviewed

    804 - 805   2018.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2018.11.07  -  2018.11.09

  • Numerical Study on Aeolian Tone with Compressible LES Reviewed

    10 - 11   2018.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2018.11.07  -  2018.11.09

  • Mode Jump of Edge Tone Captured by Direct Numerical Simulation Reviewed

    806 - 807   2018.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2018.11.07  -  2018.11.09

  • Mode Selection Rules for a Two-Delay System with Positive and Negative Feedback Loops Reviewed

    87 ( 4 )   2018.03

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.7566/JPSJ.87.044001

    Kyutacar

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85045058781&origin=inward

  • Mode Selection Rule for Three-Delay Systems Reviewed

    86 ( 12 )   2017.12

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.7566/JPSJ.86.124005

    Kyutacar

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85039851475&origin=inward

  • Fundamental Mechanism of Fluid-Acoustic Interaction in Edge Tone Reviewed

    10 - 11   2017.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2017.11.01  -  2017.11.03

  • 管楽器の数理

    髙橋公也

    数理科学 ( サイエンス社 )   651   69 - 76   2017.09

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)

  • アンブシュアを考慮したエアリード楽器の流体音響解析

    立石修平,堤元気,小林泰三,高見利也,高橋公也

    音楽音響研究会資料   35 ( 6 )   31 - 35   2017.01

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • Howeのエネルギー推論を用いたエアリード楽器の音響エネルギー発生メカニズムの解析

    髙橋公也,岩上翔,松清一樹,松田怜,小林泰三,高見利也

    音楽音響研究会資料   35 ( 6 )   37 - 42   2017.01

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • Fundamental Mechanism of Fluid-Acoustic Interaction in Edge Tone Reviewed

    104 - 105   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2016.10.10  -  2016.10.12

  • Energy Transfer between Jet Oscillation and Acoustic Field: Fundamental Mechanism of Flue Instruments Reviewed

    532 - 533   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   仙台   2016.10.10  -  2016.10.12

  • Numerical study of the influence of the mouth-flue-foot geometry on sounding mechanism of an "air-jet" instrument model Reviewed

    140 ( 4 )   Pt2.3254   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    USA   Honolulu   2016.11.28  -  2016.12.02

    DOI： 10.1121/1.4970302

  • Numerical study on acoustic intensity of edge tone with change of jet velocity Reviewed

    140 ( 4 )   Pt2.3254   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    USA   Honolulu   2016.11.28  -  2016.12.02

    DOI： 10.1121/1.4970301

  • Acoustic energy generation of "air-jet" instruments: Energy transfer between jet oscillation and acoustic field Invited Reviewed

    140 ( 4 )   Pt2.3253   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    USA   Honolulu   2016.11.28  -  2016.12.02

    DOI： 10.1121/1.4970298

  • A numerical simulation for the moving pad on a tone hole of flue musical instrument Reviewed

    140 ( 4 )   Pt2.3037   2016.10

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    USA   Honolulu   2016.11.28  -  2016.12.02

    DOI： 10.1121/1.4969427

  • Theoretical estimation of the acoustic energy generation and absorption caused by jet oscillation Reviewed

    Takahashi K., Iwagami S., Kobayashi T., Takami T.

    Journal of the Physical Society of Japan   85 ( 4 )   2016.04

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    We investigate the energy transfer between the fluid field and acoustic field caused by a jet driven by an acoustic particle velocity field across it, which is the key to understanding the aerodynamic sound generation of flue instruments, such as the recorder, flute, and organ pipe. Howe's energy corollary allows us to estimate the energy transfer between these two fields. For simplicity, we consider the situation such that a free jet is driven by a uniform acoustic particle velocity field across it. We improve the semi-empirical model of the oscillating jet, i.e., exponentially growing jet model, which has been studied in the field of musical acoustics, and introduce a polynomially growing jet model so as to apply Howe's formula to it. It is found that the relative phase between the acoustic oscillation and jet oscillation, which changes with the distance from the flue exit, determines the quantity of the energy transfer between the two fields. The acoustic energy is mainly generated in the downstream area, but it is consumed in the upstream area near the flue exit in driving the jet. This theoretical examination well explains the numerical calculation of Howe's formula for the two-dimensional flue instrument model in our previous work [Fluid Dyn. Res. 46, 061411 (2014)] as well as the experimental result of Yoshikawa et al. [J. Sound Vib. 331, 2558 (2012)] .

    DOI： 10.7566/JPSJ.85.044402

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84962374482&origin=inward

  • The Function of the Register Hole of the Clarinet and Two-delay Models

    Association of Asia Pacific Physical Societies Bulletin   25 ( 1 )   42 - 44   2015.02

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

  • Mode selection rules for two-delay systems: Dynamical Explanation for the Function of the Register Hole on the Clarinet Reviewed

    83 ( 12 )   124003   2014.12

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.7566/JPSJ.83.124003

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84924940044&origin=inward

  • Interaction between compressible fluid and sound in a flue instrument Reviewed

    46 ( 6 )   061411   2014.12

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1088/0169-5983/46/6/061411

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84913554373&origin=inward

  • Numerical study on the function of tone holes of a recorder like instrument from the viewpoint of the aerodynamic sound theory Reviewed

    19   2013.06

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1121/1.4801053

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878979677&origin=inward

  • Numerical analysis of the interaction between fluid flow and acoustic field at the mouth-opening of a flue instrument Reviewed

    19   2013.06

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1121/1.4799957

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878956780&origin=inward

  • Numerical reproducibility of time-dependent motions of spatial waves in air-columns of wind instruments Reviewed

    19   2013.06

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1121/1.4799955

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878999168&origin=inward

  • Effective techniques and crucial problems of numerical study on flue instruments Invited Reviewed

    19   2013.06

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1121/1.4799959

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878975478&origin=inward

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　最終報告書   11-NA-12   2013.05

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • Numerical study on acoustic oscillations of 2D and 3D flue organ pipe like instruments with compressible les Reviewed

    99 ( 1 )   154 - 171   2013.01

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.3813/AAA.918599

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84872475597&origin=inward

  • 移動境界問題及び連成計算の大規模流体シミュレーションと動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　中間報告   12-NA-09   2012.12

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • Instanton and noninstanton tunneling in periodically perturbed barriers: Semiclassical and quantum interpretations Reviewed

    86 ( 5 )   056206   2012.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1103/PhysRevE.86.056206

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84870433782&origin=inward

  • エアリード楽器の音孔に関する流体音数値解析

    岩崎拓也,小林泰三,高橋公也,高見利也,西田晃,青柳睦

    音楽音響研究会資料   31 ( 4 )   31 - 36   2012.10

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • エアリード楽器の歌口付近における音と流体の相互作用

    赤村高宏,長尾友樹,高橋公也,小林泰三,青柳睦

    音楽音響研究会資料   31 ( 4 )   25 - 30   2012.10

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 管楽器の管体内波形の再現

    合屋沙耶,合屋佳奈,高橋公也

    音楽音響研究会資料   31 ( 4 )   13 - 18   2012.10

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • クラリネットのレジスターホールの機能のモデル解析 2

    合屋佳奈,合屋沙耶,高橋公也

    音楽音響研究会資料   31 ( 4 )   7 - 12   2012.10

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • インスタントン v.s. 非イスタントントンネル効果:半古典論 および量子論的解釈

    高橋公也,池田研介

    素粒子論研究・電子版   13 ( 1 )   14ページ   2012.09

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　最終報告書   11-NA-12   2012.05

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • ３次元エアリード楽器の流体音源と発振特性

    高橋公也,宮本真孝,伊藤泰典,岩崎拓也,高見利也,小林泰三,西田晃,青柳睦

    数理解析研究所講究録   1776   100 - 114   2012.02

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • 19aPSA-14 Numerical reproduction of sound waves in an air column of wind instruments Reviewed

    Goya S., Goya K., Takahashi K., Miki A., Onitsuka H.

    Meeting Abstracts of the Physical Society of Japan ( The Physical Society of Japan )   67 ( 0 )   2012.01

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.11316/jpsgaiyo.67.2.2.0_248_1

    CiNii Article

    Other Link： https://ci.nii.ac.jp/naid/110009602202

  • Numerical study on air-reed instruments with LES Reviewed

    1 ( PARTS A, B, C, D )   2135 - 2145   2011.12

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1115/AJK2011-08011

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84881445383&origin=inward

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　中間報告書   11-NA-12   2011.12

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • Anomalous behavior of singularities of solution on stable and/or unstable manifolds (Perspectives of Nonequilibrium Statistical Physics : The Memory of Professor Shuichi Tasaki) Invited Reviewed

    Takahashi Kin'ya

    物性研究   97 ( 3 )   477 - 482   2011.12

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    CiNii Article

    Other Link： https://ci.nii.ac.jp/naid/110008799116

  • 非イスタントントンネル効果:半古典論およひ量子論的解釈

    高橋公也,池田研介

    素粒子論研究・電子版   10   13ページ   2011.11

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • Erratum: Anomalously long passage through a rounded-off-step potential due to a new mechanism of multidimensional tunneling (Physical Review Letters (2006) 97 (240403)) Reviewed

    107 ( 21 )   2011.11

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1103/PhysRevLett.107.219903

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=81555228447&origin=inward

  • Reproduction of Transitions among Notes on an Air-reed Musical Instrument with Com- pressible LES Combined with Moving Boundary Technique Reviewed

    CR-ROM   2011.11

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    France   Paris-Chantilly   2011.11.03  -  2011.11.04

  • クラリネットのレジスターホールの機能のモデル解析

    合屋佳奈,西山裕樹,合屋沙耶,高橋公也

    音楽音響研究会資料   30 ( 6 )   7 - 12   2011.11

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • シューマッハモデルを用いたクラリネットのシミュレーターの最適解探索

    合屋沙耶,西山裕樹,合屋佳奈,高橋公也

    音楽音響研究会資料   30 ( 6 )   1 - 6   2011.11

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • Non-instanton tunneling: Semiclassical and quantum interpretations Reviewed

    84 ( 2 )   026203   2011.08

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1103/PhysRevE.84.026203

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80051629564&origin=inward

  • 2次元および3次元モデルを用いたエッジトーンの数値解析

    高橋公也,宮本真孝,伊藤泰典,高見利也,小林泰三,西田晃,青柳睦

    数理解析研究所講究録   1749   121 - 136   2011.07

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • NUMERICAL STUDY ON AIR-REED INSTRUMENTS WITH LES Reviewed

    AJK2011-08011   2011.07

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   浜松   2011.07.24  -  2011.07.29

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　最終報告書   10-NA-04   2011.05

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • LESを用いた2次元および３次元エッジトーンの数値解析

    伊藤泰典,高橋公也,宮本真孝,高見利也,小林泰三,西田晃,青柳睦

    情報処理学会研究報告　IPSJ SIG Technical Report   2011-MUS-89 ( 17 )   2011.02

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　第２回シンポジウム   10-NA-04   2011.01

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

    シンポジウム資料集

  • Numerical analysis on 2D and 3D edge tones in terms of aerodynamic sound theory Reviewed

    1   226 - 233   2010.12

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84869104287&origin=inward

  • 圧縮性LESを用いたエアリード楽器の発音機構の数値解析

    高橋公也,宮本真孝,伊藤泰典,高見利也,小林泰三,西田晃,青柳睦

    数理解析研究所講究録   1719   26 - 36   2010.11

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • LESを用いたエッジトーン及びエアリード楽器の数値解析

    高橋公也,宮本真孝,伊藤泰典,高見利也,小林泰三,西田晃,青柳睦

    可視化情報学会誌   30 Suppl. ( 2 )   97 - 98   2010.10

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

  • 移動境界問題の大規模流体シミュレーションの動的負荷分散の評価

    高橋　公也

    学際大規模情報基盤共同利用・共同研究拠点　第１回シンポジウム   NA-4   2010.09

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (other academic)

    Web page http://jhpcn-kyoten.itc.u-tokyo.ac.jp/

  • Applicability of compressible LES to reproduction of sound vibration of an air-reed instrument Reviewed

    M. Miyamoto,Y. Ito,K. Takahashi,T. Takami,T. Kobayashi,A. Nishida and M. Aoyagi

    Proceeding of ISMA2010(CD-ROM)   paper no.37   2010.08

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    Australia   Barcelona   2010.08.26  -  2010.08.31

  • Numerical analysis on 2D and 3D edge tones in terms of aerodynamic sound theory Reviewed

    K. Takahashi,M. Miyamoto,Y. Ito,T. Takami,T. Kobayashi,A. Nishida and M. Aoyagi

    Proceeding of ICA2010(CD-ROM)   paper no.621   2010.08

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Australia   Barcelona   2010.08.23  -  2010.08.27

  • エアリード楽器の発音機構：流体と音の相互作用の解析

    高橋公也,宮本真孝,高見利也,小林泰三,西田晃,青柳睦

    数理解析研究所講究録   1697   31 - 45   2010.07

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • Structural change of the tunneling spectrum with perturbation frequency Reviewed

    43 ( 19 )   192001   2010.05

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1088/1751-8113/43/19/192001

    Kyutacar

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77951883382&origin=inward

  • 圧縮性LES を用いた小型エアリード楽器の数値解析

    宮本真孝,高見利也,小林泰三,西田晃,青柳睦,高橋公也

    音楽音響研究会資料   28 ( 7 )   7 - 12   2009.12

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • シングルリード木管楽器の遷移ダイヤグラムの数値解析

    高橋公也,児玉洋明,中島有彦,橘崇哲

    音楽音響研究会資料   28 ( 7 )   13 - 18   2009.12

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 3D Calculation with Compressible LES for Sound Vibration of Ocarina Reviewed

    T.Kobayashi,T.Takami,M.Miyamoto,K.Takahashi,A.Nishida,M.Aoyagi

    Proceedings Open Source CFD International Conference 2009 (CD-ROM)   2009.11

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    Spain   Barcelona   2009.11.12  -  2009.11.13

  • リード木管楽器の発音機構の解析 Invited Reviewed

    高橋　公也

    日本設計工学会誌「設計工学」   44 ( 11 )   609 - 618   2009.11

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)

    主要雑誌

  • Numerical study on multi-stable oscillations of woodwind single-reed instruments Reviewed

    Takahashi K., Kodama H., Nakajima A., Tachibana T.

    Acta Acustica united with Acustica   95 ( 6 )   1123 - 1139   2009.11

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    Single reed instruments with cylindrical and conical bores were studied numerically, focusing on the dependence of the acoustic mechanism on the bore geometry. As experimentally demonstrated by Idogawa et al. [J. Acoust. Soc. Am., Vol.98, p.540 (1993)], reed instruments can be characterized as multi-attractor systems, which exhibit multi-stable oscillations and hysteretic transitions among oscillating states with change of a control parameter, such as blowing pressure in the mouth. We numerically analyzed dynamical models of single reed instruments to clarify differences in the acoustic mechanisms between cylindrical and conical bore instruments. We analyzed a dynamical model of a cylindrical pipe fitted with a clarinet mouthpiece(CPCM), as a simplified model of the clarinet, and a dynamical model of a truncated cone with a clarinet mouthpiece (TCCM), as a model of conical-bore instruments, together with intermediately shaped models. We found a clear difference in the global structure of transition diagrams (i.e., the overall picture showing the transitions among all the excited states with change of the blowing pressure) between CPCM and TCCM, together with interesting structural changes of the transition diagrams in the intermediate models. © S. Hirzel Verlag · EAA.

    DOI： 10.3813/AAA.918244

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77149138650&origin=inward

  • Spectroscopic signature of the transition in a tunneling mechanism from the instanton path to a complexified stable-unstable manifold Reviewed

    Takahashi K., Ikeda K.

    Physical Review A - Atomic, Molecular, and Optical Physics   79 ( 5 )   2009.05

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    In multidimensional barrier tunneling, there exist different semiclassical mechanisms, i.e., the well-established instanton mechanism and the recently discovered mechanism utilizing complexified stable-unstable manifolds as the guide of tunneling paths. We demonstrate that the transition between the two mechanisms can be observed as a remarkable change in the spectrum of tunneled particles and propose a practical method to evaluate the tunneling rates of the two mechanisms. © 2009 The American Physical Society.

    DOI： 10.1103/PhysRevA.79.052114

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=66049101453&origin=inward

  • A plateau structure in the tunnelling spectrum as a manifestation of a new tunnelling mechanism in multi-dimensional barrier systems Reviewed

    Takahashi K., Ikeda K.

    Journal of Physics A: Mathematical and Theoretical   41 ( 9 )   2008.03

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    In recent years a new description has been developed for tunnelling in multi-dimensional systems based on complexified stable-unstable manifolds of periodic saddles. The complexified stable-unstable manifolds guide complex-classical tunnelling trajectories over the energetic barrier (Takahashi and Ikeda 2003 J. Phys. A: Math. Gen. 36 7953). In this paper it is claimed, based on theoretical analysis and numerical evidence, that the tunnelling mechanism due to complexified stable-unstable manifolds is associated with a characteristic plateau feature in the tunnelling spectrum. An analysis of a particular two-dimensional barrier tunnelling model shows that the plateau feature is obtained by a fully quantum-mechanical computation, and that the complex-semiclassical theory successfully reproduces this feature. Moreover, an analytical theory based upon Melnikov's method is developed and used to clarify quantitatively how the tunnelling mechanism due to the complexified stable-unstable manifolds leads to the formation of the plateau structure; in particular, it is shown that the classical action along the complexified stable manifold controls the height of the plateau. The analysis presented here is based on a particular model, but the main claims should hold for any system with multi-dimensional barrier tunnelling because of the universality of the underlying mechanism. © 2008 IOP Publishing Ltd.

    DOI： 10.1088/1751-8113/41/9/095101

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=41849146075&origin=inward

  • Sound Generation by a Turbulent Flow in Musical Instruments--Multiphysics Simulation Approach-- Reviewed

    T.Kobayashi,T.Takami,K.Takahashi,R.Mibu and M.Aoyagi

    Proc. HPCAsia2007   91 - 96   2007.09

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    Korea   ソウル   2007.09.09  -  2007.09.12

  • Numerical study on change of sounding mechanism of single reed instruments depending on fingerings Reviewed

    K.Takahashi,H.Kodama,A.Nakajima and T.Tachibana

    Proceedings of ISMA 2007 Barcelona   1-S1-3   2007.09

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    Spain   Barcelona   2007.09.09  -  2007.09.12

  • Generality of Plateau Spectrum in Multi-Dimensional Barrier Tunneling Invited Reviewed

    K. Takahashi,K.S.Ikeda

    Progress of Theoretical Physics Supplement   166   37 - 44   2007.05

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

  • 音孔の効果をとりいれたソプラノサキソフォンのシミュレーション

    中島有彦,橘崇哲,高橋公也

    音楽音響研究会資料   25 ( 7 )   17 - 20   2007.01

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 音孔の効果をとりいれたクラリネットのシミュレーション

    児玉洋明,橘崇哲,高橋公也

    音楽音響研究会資料   25 ( 7 )   13 - 16   2007.01

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • Generality of plateau spectrum in multi-dimensional barrier tunneling Reviewed

    Takahashi K., Ikeda K.

    Progress of Theoretical Physics Supplement   ( 166 )   37 - 44   2007.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)

    The formation of the plateau spectrum is a manifestation of the classical unstable manifold in multi-dimensional barrier tunneling, for which contributing tunneling trajectories are guided by the stable and unstable manifolds in the complex domain. In this paper, we numerically confirm that the plateau spectrum is generally observed for a wide class of multi-dimensional barrier potentials. The results of complex semiclassical analysis are also discussed.

    DOI： 10.1143/PTPS.166.37

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34548022643&origin=inward

  • Anomalously long passage through a rounded-off-step potential due to a new mechanism of multidimensional tunneling Reviewed

    Takahashi K., Ikeda K.

    Physical Review Letters   97 ( 24 )   2006.12

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    The fully complex domain semiclassical theory based upon the complexified stable-unstable manifold theory, which we have developed in our recent studies, is successfully applied to explain anomalous tunneling phenomena numerically observed in a periodically modulated round-off-step potential. Numerical experiments show that tunneling through the oscillating step potential is characterized by a spatially nondecaying tunneling tail and an anomalously slow relaxation. The key is the existence of a critical trajectory exhibiting singular behavior, and the analysis of neighboring trajectories around it reproduces the essence of such anomalous phenomena. © 2006 The American Physical Society.

    DOI： 10.1103/PhysRevLett.97.240403

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33845387099&origin=inward

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    高橋　公也

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2002-2005（文部科学省　"強レーザー光子場のおける分子制御"　科学研究費補助金　特定領域研究 平成14-17年度報告書）   298 - 301   2006.09

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Study of tunneling effect of periodically pertrubed multi-dimensional systems with the complex semiclassical method

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2002-2005   128 - 131   2006.09

    　More details

    Language：English   Publishing type：Research paper (other academic)

  • Erratum: An intrinsic multi-dimensional mechanism of barrier tunneling (Europhysics Letters (2005) 71:2 (193-199)) Reviewed

    Takahashi K., Ikeda K.

    Europhysics Letters   75 ( 2 )   2006.07

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1209/epl/i2006-10126-5

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33746228295&origin=inward

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    高橋　公也

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2005（文部科学省　科学研究費補助金　特定領域研究　"強レーザー光子場のおける分子制御"　平成17年度報告書）   266 - 269   2006.03

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Study of tunneling effect of periodically pertrubed multi-dimensional systems with the complex semiclassical method

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2005   132 - 135   2006.03

    　More details

    Language：English   Publishing type：Research paper (other academic)

  • Complex-classical Mechanism of Multi-dimensional Barrier Tunneling

    International Symposium of Complexified Dynamics, Tunnelling and Chaos   63 - 69   2005.08

    　More details

    Language：English   Publishing type：Research paper (other academic)

  • シングルリード木管楽器の数値解析

    高橋公也,橘崇哲,牧野武志

    音楽音響研究会資料   24 ( 4 )   31 - 36   2005.08

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • An intrinsic multi-dimensional mechanism of barrier tunneling Reviewed

    Takahashi K., Ikeda K.

    Europhysics Letters   71 ( 2 )   193 - 199   2005.07

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    A new semiclassical mechanism of multi-dimensional tunneling, which originates in the complexified stable and unstable manifolds of the unstable saddle (or unstable periodic orbit) on top of the potential barrier, causes a remarkable plateau-like structure in the tunneling spectrum. Such a mechanism is very universal and works when the instanton mechanism breaks down due to the strong coupling between the degrees of freedom. © EDP Sciences.

    DOI： 10.1209/epl/i2004-10538-1

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=22644437162&origin=inward

  • Classical Mechanism of Multidimensional Barrier Tunneling Reviewed

    Takahashi K., Ikeda K.

    Geometric Structures of Phase Space in Multidimensional Chaos: Applications to Chemical Reaction Dynamics in Complex Systems   130   401 - 434   2005.05

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    © 2005 by John Wiley & Sons, Inc. All rights reserved. Multi-dimensionality of systems significantly affects on tunneling phenomena observed. In particular, if a system under consideration is classically non-integrable, very complicated tunneling phenomena, so called chaotic tunneling, are observed. The aim of this short review is to explain the underlying classical mechanism of multi-dimensional barrier tunneling by using the semiclassical method based on classical dynamics extended to the complex domain, i.e., complex semiclassical method. The tunneling probability of multi-dimensional barrier systems is still well reproduced by using the complex semiclassical method even in the chaotic tunneling regime, in which a characteristic tunneling phenomenon, i.e. the fringed tunneling, is observed. However the classical trajectories guided by complexified stable and unstable manifold dominantly contribute to the tunneling probability, which gives quite a different picture of the tunneling from that given by the ordinary instanton mechanism.

    DOI： 10.1002/0471712531.ch8

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84960277838&origin=inward

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    高橋　公也

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2004（文部科学省　科学研究費補助金　特定領域研究　"強レーザー光子場のおける分子制御"　平成16年度報告書）   233 - 235   2005.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Study of tunneling effect of periodically pertrubed multi-dimensional systems with the complex semiclassical method

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2004   106 - 108   2005.04

    　More details

    Language：English   Publishing type：Research paper (other academic)

  • 新著紹介"The Mathematical Aspects of Quantum Maps"

    高橋公也

    日本物理学会誌 ( 未設定 )   59 ( 9 )   642 - 643   2004.09

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (other)

  • Sounding mechanism of wood wind single-reed instruments Reviewed

    Kin'ya Takahashi,Taka'aki Tachibana,Takeshi Makino

    International Symposium on Musical Acoustics 2004   2-S1-6   2004.04

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    奈良   2004.03.31  -  2004.04.03

  • 複素半古典論と多次元トンネル効果

    高橋公也,池田研介

    物性研究   82 ( 2 )   725 - 728   2004.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    高橋　公也

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2003 （文部科学省　科学研究費補助金　特定領域研究　"強レーザー光子場のおける分子制御"　平成15年度報告書）   235 - 236   2004.03

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Study of tunneling effect of periodically pertrubed multi-dimensional systems by using the complex semiclassical method

    "Control of Molecules in Intense Laser Field" Scientific Research on Priority Areas 2003   110 - 110   2004.03

    　More details

    Language：English   Publishing type：Research paper (other academic)

  • Semiclassical study on tunneling processes via complex-domain chaos Reviewed

    Onishi T., Shudo A., Ikeda K., Takahashi K.

    Physical Review E - Statistical, Nonlinear, and Soft Matter Physics   68 ( 5 2 )   562111 - 5621122   2003.11

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

    A complex semiclassical analysis was carried out for the tunneling problem of a kicked scattering model, which creates chaotic dynamics in complex domain. The structure of complex phase space was investigated for a kicked scattering model, and related the structure to the amounts of imaginary parts of actions gained by tunneling orbits. The symbolic description of the homoclinic tangle was applied to the symbolic encoding of the behaviors exhibited by semiclassical candidate orbits. A symbolic formula for the estimation of imaginary parts of actions was derived. The role played by complex-domain chaos in semiclassical descriptions of tunneling processes in nonintegrable system was also discussed.

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0942267628&origin=inward

  • Complex-classical mechanism of the tunnelling process in strongly coupled 1.5-dimensional barrier systems Reviewed

    Takahashi K., Ikeda K.

    Journal of Physics A: Mathematical and General   36 ( 29 )   7953 - 7987   2003.07

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The fringed tunnelling, which can be observed in strongly coupled 1.5-dimensional barrier systems as well as in autonomous two-dimensional barrier systems, is a manifestation of intrinsic multi-dimensional effects in the tunnelling process. In this paper, we investigate such an intrinsic multi-dimensional effect on the tunnelling by means of classical dynamical theory and semiclassical theory, which are extended to the complex domain. In particular, we clarify the underlying classical mechanism which enables multiple tunnelling trajectories to simultaneously contribute to the wavefunction, thereby resulting in the formation of the remarkable interference fringe on it. Theoretical analyses are carried out in the low-frequency regime based upon a complexified adiabatic tunnelling solution, together with the Melnikov method extended to the complex domain. These analyses reveal that the fringed tunnelling is a result of a heterodinic-like entanglement between the complexified stable manifold of the barrier-top unstable periodic orbit and the incident beam set. Tunnelling particles reach the real phase plane very promptly, guided by the complexified stable manifold, which gives quite a different picture of the tunnelling from the ordinary instanton mechanism. More fundamentally, the entanglement is attributed to a divergent movement of movable singularities of the classical trajectory, namely, to a singular dependence of singularities on its initial condition.

    DOI： 10.1088/0305-4470/36/29/305

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0042342514&origin=inward

  • Complex-domain semiclassical theory and periodically perturbed barrier tunneling problems Reviewed International journal

    Takahashi K., Ikeda K.S.

    Journal of the Physical Society of Japan   72 ( SUPPL.C )   87 - 96   2003.01

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1143/JPSJS.72SC.87

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0242287293&origin=inward

  • Semiclassical study on tunneling processes via complex-domain chaos Reviewed

    Onishi T., Shudo A., Ikeda K., Takahashi K.

    Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics   68 ( 5 )   2003.01

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

    We investigate the semiclassical mechanism of tunneling processes in nonintegrable systems. The significant role of complex-phase-space chaos in the description of the tunneling processes is elucidated by studying a kicked scattering model. Behaviors of tunneling orbits are encoded into symbolic sequences based on the structure of a complex homoclinic tangle. By means of the symbolic coding, the phase space itineraries of tunneling orbits are related with the amounts of imaginary parts of actions gained by the orbits, so that the systematic search of dominant tunneling orbits becomes possible. © 2003 The American Physical Society.

    DOI： 10.1103/PhysRevE.68.056211

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85035301668&origin=inward

  • Movable singularities, complex-domain heteroclinicity, and fringed tunneling in multi-dimensional systems Reviewed

    Takahashi K., Yoshimoto A., Ikeda K.S.

    Physics Letters, Section A: General, Atomic and Solid State Physics   297 ( 5-6 )   370 - 375   2002.05

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    A divergent movement exhibited by singularities of complexified classical trajectories plays an important role in multi-dimensional barrier tunneling. It induces a complex-domain heteroclinic entanglement between the stable manifold of a barrier-top unstable periodic orbit and incoming trajectories. Formation of such a complexified dynamical structure is generic in multi-dimensional barrier systems and enables multiple tunneling paths to contribute to the tunneling phenomena, which is observed as a "fringed" tunneling phenomenon, i.e., the tunneling probability is remarkably fringed due to the interference among multiple tunneling paths. © 2002 Elsevier Science B.V. All rights reserved.

    DOI： 10.1016/S0375-9601(02)00155-X

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0242287298&origin=inward

  • Dynamical and Energetic Barrier Tunneling in the Presence of Chaos in Complex Phase Space Reviewed

    A.Shudo,T.Onishi,K.S.Ikeda,K.Takahashi

    Foundamntal Aspects of Quantum Physics, Proceedings of Japan-Italy Joint Workshop on Quantum Open Systems, Quantum Chaos and Quantum Measurement, eds by L.Accardi and S.Tasaki (World Scientific Singapore 2003)   157 - 176   2001.09

    　More details

    Language：English   Publishing type：Research paper (other academic)

    東京、早稲田大学   2001.09.27  -  2001.09.29

  • Tunneling mechanism due to chaos in a complex phase space Reviewed

    Onishi T., Shudo A., Ikeda K., Takahashi K.

    Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics   64 ( 2 )   2001.08

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

    We have revealed that the barrier-tunneling process in nonintegrable systems is strongly linked to chaos in complex phase space by investigating a simple scattering map model. The semiclassical wave function reproduces complicated features of tunneling perfectly and it enables us to solve all the reasons why those features appear in spite of absence of chaos on the real plane. Multigeneration structure of manifolds, which is the manifestation of complex-domain homoclinic entanglement created by complexified classical dynamics, allows a symbolic coding and it is used as a guiding principle to extract dominant complex trajectories from all the semiclassical candidates. © 2001 The American Physical Society.

    DOI： 10.1103/PhysRevE.64.025201

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85035251789&origin=inward

  • カオス的トンネル効果の研究

    池田研介,高橋公也,首藤啓

    科学研究費補助金(基盤研究C)1998-2000年研究成果報告書   ( 10640395 )   2001.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Complex-domain semiclassical theory: Application to time-dependent barrier tunneling problems Reviewed

    Takahashi K., Ikeda K.

    Foundations of Physics   31 ( 1 )   177 - 201   2001.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    Semiclassical theory based upon complexified classical mechanics is developed for periodically time-dependent scattering systems, which are minimal models of multi-dimensional systems. Semiclassical expression of the wave-matrix is derived, which is represented as the sum of the contributions from classical trajectories, where all the dynamical variables as well as the time are extended to the complex-domain. The semiclassical expression is examined by a periodically perturbed 1D barrier system and an excellent agreement with the fully quantum result is confirmed. In a stronger perturbation regime, the tunneling component of the wave-matrix exhibits a remarkable interference fringes, which is clarified by the semiclassical theory as an interference among multiple complex tunneling trajectories. It turns out that such a peculiar behavior is the manifestation of an intrinsic multi-dimensional effect closely related to a singular movement of singularities possessed by the complex classical trajectories.

    DOI： 10.1023/A:1004164107178

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0035592250&origin=inward

  • Sounding mechanism of a cylindrical pipe fitted with a clarinet mouthpiece Reviewed

    Tachibana T., Takahashi K.

    Progress of Theoretical Physics   104 ( 2 )   265 - 288   2000.08

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    The sounding mechanism of a cylindrical pipe fitted with a clarinet mouthpiece (CPCM) is studied. The main aim of this paper is to introduce a reliable and minimal model which satisfactorily reproduces nonlinear vibrations excited in the air column and associated hysteretic transitions between them when the blowing pressure is varied as a control parameter. Such phenomena are commonly observed for woodwind reed instruments blown artificially, as reported by Idogawa et al. The noteworthy point of our model is that a reflection function consists of two main inverted peaks, one with a long delay, which represents the reflection from the open pipeend, and the other with a short delay, which originates from the irregular bore geometry of the mouthpiece. Our numerical calculation is carried out using the Schumacher model [Acustica 48 (1981), 71], including such a reflection function. Many kinds of nonlinear vibrations, periodic and quasi-periodic vibrations, as well as the hysteretic transitions between them are obtained numerically. Our results reproduce those observed experimentally quite well. They strongly suggest that the sound wave reflection due to the irregularity of the mouthpiece is one of the essential properties of woodwind sounding.

    DOI： 10.1143/PTP.104.265

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034346028&origin=inward

  • Complex Semiclassical Description of Scattering Problem in Systems with 1.5 Degrees of Freedom Reviewed

    Takahashi K., Ikeda K.

    Annals of Physics   283 ( 1 )   94 - 140   2000.07

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The tunneling effect in multidimensional systems may be greatly influenced by the underlying chaotic dynamics which is generic in more than one-dimensional systems. Aiming at a classical dynamical description of chaotic tunneling, we have developed in the present paper a basic formulation for the complex-domain semiclassical wave-matrix of systems with 1.5 degrees of freedom, namely, periodically time-dependent 1D-scattering systems, which can be regarded as a minimal model of multidimensional systems. Using an autonomous 2D system equivalent to the periodically time-dependent system, the semiclassical expression of the wave-matrix described in the 1D time-dependent picture is derived. In the latter half of the paper, our semiclassical formulation is examined with two simple examples, i.e., an oscillating wall and an oscillating barrier. The semiclassical wave-matrix is constructed, paying particular attention to some problems which emerge by extending classical dynamics to complex domain, and the results are compared with the fully quantum counterparts. The semiclassical results agree quite well with the corresponding quantal results if complex classical trajectories are fully taken into account. The relationship between the semiclassical wave-matrix and Miller's classical S-matrix is also discussed. © 2000 Academic Press.

    DOI： 10.1006/aphy.2000.6050

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0009148023&origin=inward

  • (翻訳) 射影と鏡映 原子運動の量子力学的な全体描像(デートリヒ・ライプフリード、ティルマン・プファウ、クリストファー・モンロー)

    高橋公也

    パリティー ( 未設定 )   14 ( 6 )   11 - 21   2000.06

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (other)

  • 複素古典力学系と多次元トンネル効果

    高橋　公也

    数理科学   37 ( 8 )   11 - 21   1999.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • Sounding mechanism of a single-reed instrument with a cylindrical air-column Reviewed

    T.Tachibana,K.Man'syo,K.Onodera,Kin'ya TAKAHASHI,T.Idogawa

    Proceeding of International Symposium on Musical Acoustics   221 - 226   1998.07

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    USA   Sleeping Lady Conference Center along Icicle Creek Leavenworth Washington USA   1998.06.26  -  1998.07.01

  • 周期変動するポテンシャルにおける散乱問題

    高橋公也,池田研介(立命館大)

    物性研究   70 ( 4 )   547 - 550   1998.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Experimental and Numerial study of hysteretic transitions between vibration states excited in a cylindrical air column blown by the clarinet mouthpiece Reviewed

    T.Tachibana,K.Onodera,K.Takahashi,T,Idogawa

    Proceedings of ASVA97, International Symposium on Simulation, Visualization and Auralization for Acoustic Rsearch and Education, Tokyo   659 - 666   1997.04

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    東京   1997.04.02  -  1997.04.04

  • 小数多体系における量子カオス

    高橋公也,橘崇哲,池田研介

    岡崎国立共同研究機構分子科学研究所電子計算機センター・センタークポート   ( 18 )   175 - 176   1997.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • Application of symplectic integrator to stationary reactive-scattering problems: Inhomogeneous Schrödinger equation approach Reviewed

    Takahashi K., Ikeda K.

    Journal of Chemical Physics   106 ( 11 )   4463 - 4480   1997.03

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The FFT-symplectic integrator (SI) scheme devised for solving the wave packet propagation problem is applied to stationary reactive-scattering problems. In order to relate the stationary problem to the time-dependent problem, a class of Schrödinger equation with an inhomogeneous wave source term is introduced. By using the equivalence between the stationary scattering eigenstate and the equilibrium state of the inhomogeneous Schrödinger equation, the scattering eigenstates can be computed by integrating the inhomogeneous Schrödinger equation with the FFT-SI scheme. A Gaussian wave source is proposed as an efficient wave source exhibiting rapid relaxation toward the eigenstate. Our method is tested by a one-dimensional example which has an analytical solution, and great numerical accuracy is confirmed. It is further examined by an example of time-dependent scattering and by a two-dimensional example of chaotic tunnel-scattering. © 1997 American Institute of Physics.

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0001669525&origin=inward

  • Hysteretic transitions between vibratory states excited in a cylindrical air column blown by the clarinet mouthpiece Reviewed

    T.Tachibana,K.Onodera,K.Takahashi,T.Idogawa

    Acoustical Society of America and Acoustical Society of Japan, Third Joint Meeting, Proceedings of the papers submitted to Acoustical Society of Japan, Sheraton-Waikiki Hotel, Honolulu, Hawaii   407 - 412   1996.12

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)

    ホノルル   1996.12.02  -  1996.12.06

  • 少数多体系の量子カオス

    高橋公也,橘崇哲,池田研介

    岡崎国立共同研究機構分子科学研究所電子計算機センター,センターレポート   ( 17 )   169 - 170   1996.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • 管楽器吹鳴の非線形現象とその解釈をめぐって Reviewed

    高橋公也,池田研介

    物性研究   64 ( 1 )   26 - 88   1995.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 複素古典力学と量子トンネル効果

    高橋　公也

    物性研究   64 ( 4 )   372 - 387   1995.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 少数多体系における量子カオス

    高橋公也,橘崇哲,池田研介

    岡崎国立共同研究機構分子科学研究所電子計算機センター、センターレポート   ( 16 )   175 - 176   1995.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • McIntyre,Schumachre,Woodhouseモデルによるクラリネットのシュミレーション

    橘崇哲,高橋公也

    物性研究   62 ( 5 )   642 - 651   1994.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 少数多体系におけるカオス

    高橋公也,熊谷亮一,橘崇哲,池田研介

    岡崎国立共同研究機構分子科学研究所電子計算機センター,センターレポート   ( 15 )   181 - 182   1994.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • スムーズな周期外力系の準固有状態に現われる位相の複雑さ

    高橋公也

    物性研究   59   749 - 756   1993.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 少数多体系におけるカオス

    高橋　公也

    岡崎国立共同研究機構 分子科学研究所電子計算センター センターレポート   ( 14 )   215 - 216   1993.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • 量子力学にカオスはあるか?

    高橋　公也

    日本物理学会講演会テキスト"「カオス」-力学系に現われる秩序-無秩序-そして複雑さへの挑戦-"   36 - 52   1993.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Applicability of symplectic integrator to classically unstable quantum dynamics Reviewed

    Takahashi K., Ikeda K.

    The Journal of Chemical Physics   99 ( 11 )   8680 - 8694   1993.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    Applicability of symplectic integrator (SI) to classically unstable (chaotic) quantum systems is examined, and accuracy and efficiency as a numerical integrator of Schro¨dinger equation are demonstrated. The second order SI is well known as the split operator method to molecular scientists. Recently, construction of higher order SIs has been developed by several authors. In the present paper, we compare systematically various higher order SI schemes by applying them to a simple quantum chaos system and emphasize the necessity of introducing higher order schemes. Although the higher order SIs have originally been invented for high precision computation of classical trajectories, it will more promisingly be applied to quantum systems. This is because the exponential instability is absent in quantum systems, but an extensive numerical test reveals that the accumulation of error accompanying a long time integration by SI reflects the stability of the system in the classical limit, and closer attention must be payed for classically chaotic quantum system in the semiclassical regime. It is in such a regime that higher order SI schemes work efficiently. © 1993 American Institute of Physics.

    DOI： 10.1063/1.465592

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0001151679&origin=inward

  • Dynamical Fluctuations of Observables and the Ensemble of Classical Trajectories Reviewed

    Takahashi K., Shudo A.

    Journal of the Physical Society of Japan   62 ( 8 )   2612 - 2635   1993.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The long term behavior of non-integrable quantum systems is investigated to find a classical counterpart that describes the statistical properties of dynamical fluctuation of quantum observables. On the basis of the quantum-classical correspondence in the integrable system, we introduce the ensemble of classical trajectories (ECT), which is defined as a set of weighted classical trajectories whose mean density in phase space is one per Planck cell. In the non-integrable system, due to the rapid breakdown of quantum-classical correspondence of the wavepacket dynamics, the ECT is unable to yield the correct temporal behavior of quantum observables. However, numerical experiments reveal that it gives a good approximation of various statistical properties of the quantum dynamical fluctuation. This result strongly suggests that, as far as the statistical properties are concerned, the dominant part of the quantum dynamical fluctuation is determined by classical dynamics, i.e. a set of classical trajectories. The meaning and interpretation of the ECT in relation to the coherent subsystem is also discussed. © 1993, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.62.2612

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=21344494839&origin=inward

  • 統計力学極限における古典軌道アンサンブル

    高橋公也,首藤啓

    物性研究   58   104 - 108   1992.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 少数多体系におけるカオス

    高橋　公也

    岡崎国立共同研究機構 分子科学研究所電子計算センター センターレポート   ( 13 )   233 - 234   1992.04

    　More details

    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)

  • (翻訳) 量子カオスは古典カオスを予言できるか？(D.クレップナー)

    高橋公也

    パリティー ( 未設定 )   7 ( 2 )   4 - 7   1992.02

    　More details

    Authorship：Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (other)

  • 力学量期待値の時間発展と古典軌道アンサンブル

    高橋公也,首藤啓

    物性研究   56   144 - 148   1991.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 力学量の長時間発展と量子カオス

    高橋公也,首藤啓

    物性研究   53   599 - 603   1990.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 量子力学系のカオス

    高橋　公也

    第35回物性若手夏の学校テキスト   B-29-35   1990.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Distribution Functions in Classical and Quantum Mechanics Reviewed

    Progress of Theoretical Physics Supplement   98   109 - 156   1989.04

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

  • 量子カオスにおける力学量の時間発展

    高橋公也,首藤啓

    物性研究   51   823 - 826   1989.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • Similarity and essential difference between coarse-grained classical and quantum mechanics Reviewed

    Takahashi K.

    Journal of the Physical Society of Japan   58 ( 10 )   3514 - 3530   1989.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    This paper deals with how a classical mechanics relates to the quantum mechanics, comparing the stationary distribution function on a constant energy in a coarsegrained classical system with the Husimi function pH of the eigenstate of quantum system. In the domain of a torus with one degree of freedom, these two functions are quite similar to each other. On the other hand, around a hyperbolic fixed-point the functions satisfy the equations of the similar type. However the solutions admissible for classical and quantum distribution functions have very different forms. In this paper we discuss the necessity for the problem of the correspondence between classical and quantum mechanics to investigate not only the similarity of the equations but also the geometrical structure of the solutions. © 1989, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.58.3514

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77952985626&origin=inward

  • Time Development of Distribution Function in Coarse-Grained Mechanics Reviewed

    Journal of the Physical Society of Japan   57 ( 2 )   1988.04

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

  • 粗視化された古典系と伏見関数

    高橋　公也

    物性研究   49   451 - 452   1988.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 量子力学系のカオス

    高橋　公也

    明専会報   ( 645 )   23 - 29   1988.04

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Time Development of Distribution Function in Coarse-Grained Mechanics Reviewed

    Takahashi K.

    Journal of the Physical Society of Japan   57 ( 2 )   442 - 452   1988.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    Relationship between Husimi function ρH and distribution function ρcc in coarsegrained classical mechanics is studied where ρcc is introduced by same manner of coarse-graining in Husimi function. Defining the product of dynamical variables and Poisson brackets in coarse-grained classical mechanics, we reduce the equations for time development of the quantities. Particularly, ρcc shows good correspondence to ρH in early stage of time development, but shows poor conformity after quantum interference appeared. © 1988, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.57.442

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77952989814&origin=inward

  • 粗視化された古典系と伏見関数

    高橋　公也

    物性研究   48 ( 4 )   392 - 396   1987.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • Husimi Function around Hyperbolic Point Reviewed

    Takahashi K.

    Journal of the Physical Society of Japan   55 ( 6 )   1783 - 1786   1986.06

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    Husimi functions for eigen states around a hyperbolic point are studied. Husimi functions for eigen states of wave forms with even and odd parity are strictly concerned with the hyperbolic point and the separatrix in classical limit (ħ→0), respectively. It is interesting that classical behavior is affected by quantum symmetry. © 1986, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.55.1783

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0040976632&origin=inward

  • Chaos and Time Development of Quantum Wave Packet in Husimi Representation Reviewed

    Takahashi K.

    Journal of the Physical Society of Japan   55 ( 5 )   1443 - 1457   1986.05

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    Time development of quantum wave packet is studied in the Hisumi representation for regular and irregular case. The Husimi distribution function spreads on tori or into irregular region for regular or irregular case, respectively and coincides to classical probability distribution function. However by the quantum mechanical interference effects, small packets appear in the process of time development and thus the Husimi distribution function distributes inhomogeneously in contrast to the classical uniform probability distribution function. These small packets are shown to be more stable than classical one. © 1986, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.55.1443

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=5544308339&origin=inward

  • Wigner and Husimi Functions in Quantum Mechanics Reviewed

    Journal of the Physical Society of Japan   55 ( 3 )   762 - 779   1986.04

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

  • Chaos and Time Development of Quantum Wave Packet in Husimi Representation Reviewed

    Journal of the Physical Society of Japan   55 ( 5 )   1443 - 1457   1986.04

    　More details

    Language：English   Publishing type：Research paper (scientific journal)

  • 量子カオスと伏見関数

    高橋　公也

    物性研究   46 ( 2 )   199 - 202   1986.04

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • 量子カオスと伏見関数

    高橋　公也

    学位論文   1986.03

    　More details

    Language：Japanese   Publishing type：Research paper (other academic)

  • Wigner and Husimi Functions in Quantum Mechanics Reviewed

    Takahashi K.

    Journal of the Physical Society of Japan   55 ( 3 )   762 - 779   1986.03

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The quantum dynamics in Husimi representation is studied for the commutation relation, time development of distribution function and eigen distribution function. In the integrable system, the Husimi eigen distribution function is confined almost on the classical torus and can be approximated by Gaussian distribution with the variance (Δξι)2 ∼ ħ/2 around the torus. Further, considering the correspondence between quantum and classical mechanics, the Husimi distribution function is a better representation than the Wigner distribution function, because coarse graining is usually involved in observational process. © 1986, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.55.762

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0022678152&origin=inward

  • Chaos and Husimi distribution function in quantum mechanics Reviewed

    Takahashi K., Saitô N.

    Physical Review Letters   55 ( 7 )   645 - 648   1985.07

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    We study the correspondence between quantum and classical dynamics with Wigner and Husimi distribution functions, respectively. The nature of quantum-mechanical regular and irregular behaviors is discussed with the use of Wigner and Husimi distribution functions. By numerical studies of the chaotic state, the Husimi distribution function is found to be a better representation than the Wigner distribution function, because coarse graining is usually involved implicitly in an observational process using the Wigner distribution function. © 1985 The American Physical Society.

    DOI： 10.1103/PhysRevLett.55.645

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=4244041159&origin=inward

  • 量子カオスと伏見関数

    高橋　公也

    物性研究   44   362 - 648   1985.05

    　More details

    Language：Japanese   Publishing type：Research paper (scientific journal)

  • External Disturbance to Non-Integrable Hamiltonian System Reviewed

    Takahashi K., Ichimura A., Saitô N., Hirooka H.

    Journal of the Physical Society of Japan   54 ( 2 )   500 - 515   1985.01

    　More details

    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    The response of the regular and irregular regions to a periodic external force in two-dimensional Hamiltonian systems are studied, through power spectrum, energy change, Poincare map and Lyapunov number. In the regular case, three-dimensional tori are constructed for small perturbation. It is shown that there exists a certain critical value Qc of the amplitude of the external force below which the trajectories are regular but above which they become irregular. In the irregular region, main attention is paid to the Lyapunov number, which is shown to vary sensitively to the variation of the amplitude, indicating the difference of the nature of the orbits. This suggests that perturbation theory is not applicable to the irregular case, as is usually done in the linear response theory. © 1985, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

    DOI： 10.1143/JPSJ.54.500

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0022010466&origin=inward

  • External distarbance to Chaos Reviewed

    Nonequilibrium Statistical Physics Problems in Fusion Plasmas Proceeding of the Workshop, Kyoto   1981.04

    　More details

    Language：English   Publishing type：Research paper (other academic)

    1981.04  -  1981.04

▼display all

Publications (Books)

  • 音楽音響

    亀川 徹,足立 整治,西口 磯春,松谷 晃宏,髙橋 公也,若槻 尚斗,星野 悦子,谷口 高士,山本 由紀子,三浦 雅展,大田 健紘,丸井 淳史（Joint author）

    コロナ社  2023.03  （ ISBN:978-4-339-01369-6 ）

    　More details

    Total pages：316   Responsible for pages：8   Language：Japanese

  • Dynamical Tunneling: Theory and Experiment

    Kin'ya Takahashi（Sole author）

    CRC Press  2011.03 

    　More details

    Language：English

  • Classical Mechanism of Multidimensional Barrier Tunneling Reviewed

    Takahashi K., Ikeda K.（Joint author）

    Geometric Structures of Phase Space in Multidimensional Chaos: Applications to Chemical Reaction Dynamics in Complex Systems  2005.05  （ ISBN:9780471711582 ）

    　More details

    Language：English

    DOI： 10.1002/0471712531.ch8

    Scopus

  • 別冊・数理科学 量子カオスの物理と数理

    高橋公也（III. 量子カオスの物理 複素古典力学系と多次元トンネル効果）

    サイエンス社  2000.04 

    　More details

    Language：Japanese

  • カオス・インパクト カオスは自然科学と社会科学に何をもたらしたか Celso Grebogi/James A.Yorke偏 訳者代表 香田徹

    林初男,高橋公也（第4章 EEGはストレンジアトラクタか? 脳幹ニューロンの放電パターンと脳波リズムArnold J.Mandell and Karen A.Selz)の翻訳担当）

    森北出版株式会社  1999.04 

    　More details

    Language：Japanese

Conference Prsentations (Oral, Poster)

  • 3 次元圧縮性 LES を用いたエッジトーンの再現とそのフィードバック機構の考察

    小野又樹,岩上翔, 田畑諒也, 大野泰治郎, 小林泰三, 髙橋公也

    第 36 回数値流体力学シンポジウム  日本流体力学会

    　More details

    Event date： 2022.12.14 - 2022.12.16   Language：Japanese   Country：Japan  

  • LES を用いたエッジトーンの 3 次元流体音響解析

    小野又樹, 岩上翔, 田畑諒也, 大野泰治郎, 小林泰三, 髙橋公也

    第 128 回日本物理学会九州支部例会  日本物理学会九州支部

    　More details

    Event date： 2022.12.03   Language：Japanese  

  • 多重遅延系のモード選択則と管楽器モデル Invited

    高橋公也,小林泰三

    2022 年度 RIMS 共同研究(公開型) 「時間遅れ系と数理科学:理論と応用の新たな展開に向けて」  2022.11  京都大学数理解析研究所

    　More details

    Event date： 2022.11.16 - 2022.11.18   Language：Japanese  

  • 管楽器の大規模流体音響解析 Invited

    高橋公也

    第14回JHPCN拠点シンポジウム  2022.07  JHPCN

    　More details

    Event date： 2022.07.07 - 2022.07.08   Language：Japanese  

  • 管楽器の大規模流体音響解析 Invited

    高橋公也

    第14回JHPCN拠点シンポジウム  2022.07  JHPCN

    　More details

    Event date： 2022.07.07 - 2022.07.08   Language：Japanese  

  • 管楽器の大規模流体音響解析 Invited

    高橋公也

    第13回JHPCN拠点シンポジウム  2021.07  JHPCN

    　More details

    Event date： 2021.07.08 - 2021.07.09   Language：Japanese  

  • 管楽器および音響機器の大規模流体音響解析 Invited

    高橋公也

    第13回JHPCN拠点シンポジウム  2021.07  JHPCN

    　More details

    Event date： 2021.07.08 - 2021.07.09   Language：Japanese  

  • 管楽器の大規模流体音響解析 Invited

    高橋公也

    第12回JHPCN拠点シンポジウム  JHPCN

    　More details

    Event date： 2020.07.09   Language：Japanese  

  • ロジスティック写像を取り込んだ２重遅延系のモード選択則と分岐現象

    高橋公也,小林泰三

    日本物理学会第75回年次大会   日本物理学会

    　More details

    Event date： 2020.03.16 - 2020.03.19   Language：Japanese  

  • 木管楽器の音孔と移動境界 V

    小林泰三

    日本物理学会第74回年次大会   日本物理学会

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • シングルリード木管楽器のマウスピース内の流体音響解析 II

    小岩屋寿晃

    日本物理学会第74回年次大会   日本物理学会

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • オカリナの流体音響解析 2

    岡田紘彰

    日本物理学会第74回年次大会   日本物理学会

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • Numerical Study on a 2D Flue Organ Pipe with Compressible LES Focusing on the Role of the Foot

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • DNSを用いたエッジトーンのモード遷移の再現

    岩上翔

    日本物理学会第74回年次大会   日本物理学会

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • エアリード楽器の同期現象の数値解析

    田畑諒也

    日本物理学会第74回年次大会   日本物理学会

    　More details

    Event date： 2019.03.14 - 2019.03.17   Language：Japanese  

  • 周期摂動の入った上が平らな障壁ポテンシャルの非インスタントントンネル効果：波束散乱

    髙橋公也

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • 周期摂動の入った上が平らな障壁ポテンシャルの非インスタントントンネル効果：定常散乱

    髙橋公也

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • シングルリード木管楽器のマウスピース内の 流体音響解析

    小岩屋寿晃

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • オカリナの流体音響解析

    岡田紘彰

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • 木管楽器の音孔と移動境界 IV

    若狭大輝

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • DNSを用いたエッジトーンの解析

    岩上翔

    日本物理学会2018年秋季大会   日本物理学会

    　More details

    Event date： 2018.09.09 - 2018.09.12   Language：Japanese  

  • 2重遅延系の非適合条件近傍のモード選択則とファレイ数列

    高橋公也

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • 非分散極限における2重遅延系のモード選択則

    高橋公也

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • オルガンパイプの発音機構におけるバックチャンバーの役割

    立石修平

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • エッジトーンの基礎問題の流体音響解析III

    岩上翔

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • バスレフポートスピーカーのポートノイズの流体音解析II

    桑原拓也

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • 圧縮性LESを用いたエオルス音の流体音響解析

    横山博一

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • 木管楽器の音孔と移動境界III

    小林泰三

    日本物理学会2017年秋季大会   日本物理学会

    　More details

    Event date： 2017.09.21 - 2017.09.24   Language：Japanese  

  • エッジトーンの基礎問題の流体音響解析II

    岩上翔

    日本物理学会第72回年次大会   日本物理学会

    　More details

    Event date： 2017.03.17 - 2017.03.20   Language：Japanese  

  • 木管楽器の音孔と移動境界問題II

    若狭大輝

    日本物理学会第72回年次大会   日本物理学会

    　More details

    Event date： 2017.03.17 - 2017.03.20   Language：Japanese  

  • エアリード楽器の３次元流体解析

    松田怜

    日本物理学会第72回年次大会   日本物理学会

    　More details

    Event date： 2017.03.17 - 2017.03.20   Language：Japanese  

  • エッジトーンの基礎問題の流体音響解析

    岩上翔

    第三回非線形の捉え方 

    　More details

    Event date： 2016.11.03 - 2016.11.05   Language：Japanese  

  • アンブシュアを考慮したエアリード楽器の流体音響解析

    立石修平

    第三回非線形の捉え方 

    　More details

    Event date： 2016.11.03 - 2016.11.05   Language：Japanese  

  • エッジトーンの基礎問題の流体音響解析

    岩上翔

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2017.09.16   Language：Japanese  

  • アンブシュアを考慮したオルガンパイブの流体音響解析

    立石修平

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • 多重遅延系のモード選択則２

    髙橋公也

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • 正負のフィードバックの入った２重遅延系のモード選択則

    髙橋公也

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • 木管楽器の音孔と移動境界

    小林泰三

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • フルート唄口近傍の流体音響解析

    馬場玲於

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • 閉管楽器のレジスターホールの機能における流体音響解析

    松清一樹

    日本物理学会2016年秋季大会   日本物理学会

    　More details

    Event date： 2016.09.13 - 2016.09.16   Language：Japanese  

  • エッジトーンの基礎問題の流体音響解析

    岩上翔

    第二回非線形の捉え方 

    　More details

    Event date： 2016.05.13 - 2016.05.15   Language：Japanese  

  • Mode selection rules for multi-delay systems

    　More details

    Event date： 2016.03.19 - 2016.03.22   Language：Japanese  

  • 音孔のついた閉管の共鳴状態の流体音響解析II

    松清一樹

    日本物理学会第71回年次大会   日本物理学会

    　More details

    Event date： 2016.03.19 - 2016.03.22   Language：Japanese  

  • フルート歌口近傍の流体音響解析II

    馬場玲於

    日本物理学会第71回年次大会   日本物理学会

    　More details

    Event date： 2016.03.19 - 2016.03.22   Language：Japanese  

  • エッジトーンの発音機構における数値解析

    岩上翔

    日本物理学会第71回年次大会   日本物理学会

    　More details

    Event date： 2016.03.19 - 2016.03.22   Language：Japanese  

  • 19aBU-7 Numerical analysis on sounding mechanism of edge tone

    Iwagami S., Tsutsumi G., Kobayashi T., Takami T., Takahashi K.

    　More details

    Event date： 2016.03.19   Language：Japanese  

    CiNii Article

  • 20pPSA-61 Fluid-acoustic analysis on resonance states of the closed pipe with a tone hole II

    Matsukiyo Kazuki, Nomiyama Ryo, Shinohara Kousuke, Baba Reo, Iwagami Sho, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2016.03.19   Language：Japanese  

    CiNii Article

  • 20pPSA-60 Fluid-acoustic analysis on jet oscillations near the mouth opening of the flute II

    Baba Reo, Miki Akira, Onituka Hirofumi, Miyakawa Noriyoshi, Iwagami Sho, Tsutsumi Genki, Matsukiyo Kazuki, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2016.03.19   Language：Japanese  

    CiNii Article

  • Numerical evaluation of the aerodynamics sound of edge tone

    　More details

    Event date： 2015.12.15 - 2015.12.17   Language：Japanese  

  • Mode selection rules for three delay systems

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Mode selection rules for two delay systems: for understanding the function of register hole of the clarinet

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Fluid-acoustic analysis on jet oscillations near the mouth opening of the flute

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Fluid-acoustic analysis of the port noise in the bass reflex port speaker

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Fluid-acoustic analysis on resonance states of the closed pipe with a tone hole

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • 近可積分領域におけるトンネル階段構造とその性質

    大屋俊弘

    日本物理学会2015年秋季大会  日本物理学会

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Analytical estimation of acoustic energy generation from oscillating jets with a toy model

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Vortex Sound of a flue instrument and Howe's energy corollary

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • Numerical evaluation of the aerodynamic sound source of the edge tone

    　More details

    Event date： 2015.09.16 - 2015.09.19   Language：Japanese  

  • 17aCW-2 Numerical evaluation of the aerodynamic sound source of edge tone

    Iwagami Sho, Tsutsumi Genki, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2015.09.16   Language：Japanese  

    CiNii Article

  • 17pPSA-85 Fluid-acoustic analysis on jet oscillations near the mouth opening of the flute

    Baba Reo, Miki Akira, Onituka Hirofumi, Miyakawa Noriyoshi, Iwagami Sho, Tsutsumi Genki, Matsukiyo Kazuki, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2015.09.16   Language：Japanese  

    CiNii Article

  • 17pPSA-84 Fluid-acoustic analysis of the port noise in the bass reflex port speaker

    Kitazaki Shoichi, Baba Reo, Matsukiyo Kazuki, Iwagami Sho, Tsutsumi Genki, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2015.09.16   Language：Japanese  

    CiNii Article

  • 17pPSA-83 Fluid-acoustic analysis on resonance states of the closed pipe with a tone hole

    Matsukiyo Kazuki, Nomiyama Ryo, Baba Reo, Iwagami Sho, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    　More details

    Event date： 2015.09.16   Language：Japanese  

    CiNii Article

  • Vortex Sound from a wavy jet and Howe's energy corollary

    XXXV Dynamics days Europe 

    　More details

    Event date： 2015.09.06 - 2015.09.10   Language：English  

  • Numerical Analysis on the Lighthill Sound Sources of Oscillating Jet

    Sho Iwagami

    Pan-American Congress on Computational Mechanics 

    　More details

    Event date： 2015.04.27 - 2015.04.29   Language：English  

  • 連続時間系トンネル共鳴状態の階段構造について

    大屋俊弘

    日本物理学会第70回年次大会   日本物理学会

    　More details

    Event date： 2015.03.21 - 2015.03.24   Language：Japanese  

  • A Study on Acoustical Characteristics of Air-Column Bending Based on Fluid-Acoustic Simulations

    　More details

    Event date： 2015.03.21 - 2015.03.24   Language：Japanese  

  • エアリード楽器でのジェットの安定性解析

    堤元気

    日本物理学会第70回年次大会   日本物理学会

    　More details

    Event date： 2015.03.21 - 2015.03.24   Language：Japanese  

  • Numerical evaluation of the aerodynamics sound source of edge tone

    　More details

    Event date： 2015.03.21 - 2015.03.24   Language：Japanese  

  • 21aPS-20 Numerical evaluation of the aerodynamic sound source of edge tone

    Iwagami Sho, Tsutsumi Genki, Nakamo Ken'ichiro, Kobayashi Taizo, Takahashi Kin'ya

    　More details

    Event date： 2015.03.21   Language：Japanese  

    CiNii Article

  • 21aPS-22 A Study on Acoustical Characteristics of Air-Column Bending Based on Fluid-Acoustic Simulations

    Miyakawa N., Kobayashi T., Takahashi K., Yoshikawa S.

    　More details

    Event date： 2015.03.21   Language：Japanese  

    CiNii Article

  • 21aPS-21 Numerical analysis on jet stability of flue instruments

    Tsutsumi Genki, Iwagami Sho, Nakano Ken'ichiro, Kobayashi Taizo, Takahashi Kin'ya

    　More details

    Event date： 2015.03.21   Language：Japanese  

    CiNii Article

  • 17aCW-2 Numerical evaluation of the aerodynamic sound source of edge tone

    Iwagami Sho, Tsutsumi Genki, Kobayashi Taizo, Takami Toshiya, Takahashi Kin'ya

    Meeting Abstracts of the Physical Society of Japan 

    　More details

    Event date： 2015.01   Language：Japanese  

    CiNii Article

  • Evaluation of acoustic energy generation and absorption in a flue instrument with Howe's energy corollary

    Kin'ya Takahashi

    XXXIV Dynamics days Europe  University of Bayreuth

    　More details

    Event date： 2014.09.08 - 2014.09.12   Language：English  

  • A numerical simulation for a tone hole of flue musical instrument

    Taizo Kobayashi

    XXXIV Dynamics days Europe  University of Bayreuth

    　More details

    Event date： 2014.09.08 - 2014.09.12   Language：English  

  • 連続時間系トンネル共鳴状態へのカオスの影響~コントリビューションスペクトルによる解析~

    大屋俊弘

    物理学会第69回年次大会  

    　More details

    Event date： 2014.03.27 - 2014.03.30   Language：Japanese  

  • 流体音に於ける移動境界問題Ⅳ

    小林泰三

    日本物理学会2013年度秋季大会 第2分冊 

    　More details

    Event date： 2013.09.25 - 2013.09.28   Language：Japanese  

  • キャビティ騒音に置ける音と流体のエネルギー相互作用の解析

    中野健一郎

    日本物理学会2013年度秋季大会 第2分冊 

    　More details

    Event date： 2013.09.25 - 2013.09.28   Language：Japanese  

  • エアリード楽器の歌口付近における音と流体のエネルギー相互作用の解析

    長尾友樹

    日本物理学会2013年度秋季大会 第2分冊 

    　More details

    Event date： 2013.09.25 - 2013.09.28   Language：Japanese  

  • 連続時間系トンネル共鳴状態へのカオスの影響とその諸問題

    大屋俊弘

    日本物理学会2013年秋季大会 

    　More details

    Event date： 2013.09.25 - 2013.09.28   Language：Japanese  

  • 共鳴トンネル現象における非インスタントントンネル効果

    本人

    物理学会第68回年次大会  

    　More details

    Event date： 2013.03.26 - 2013.03.29   Language：Japanese  

  • エアリード楽器の歌口付近における音と流体の相互作用II

    赤村高宏

    物理学会第6８回年次大会 第2分冊 

    　More details

    Event date： 2013.03.26 - 2013.03.29   Language：Japanese  

  • 連続時間系トンネル共鳴状態へのカオスの影響

    大屋俊弘

    物理学会第68回年次大会 第２分冊 

    　More details

    Event date： 2013.03.26 - 2013.03.29   Language：Japanese  

  • Interaction between compressible fluid and sound in a flue instrument

    T. Kobayashi

    IUTAM Symposium on Vortex Dynamics: Formation, Structure and Function  Kyushu University

    　More details

    Event date： 2013.03.10 - 2013.03.14   Language：English  

  • エアリード楽器の歌口付近における音と流体の相互作用

    長尾友樹

    物理学会 2012年秋期大会 第2分冊 

    　More details

    Event date： 2012.09.18 - 2012.09.21   Language：Japanese  

  • 2自由度系における非インスタントンとインスタントントンネル効果

    本人

    物理学会2012年秋季大会 第2分冊 

    　More details

    Event date： 2012.09.18 - 2012.09.21   Language：Japanese  

  • 管楽器の管体内部の音波の再現

    髙橋公也

    物理学会 2012年秋期大会 第2分冊 

    　More details

    Event date： 2012.09.18 - 2012.09.21   Language：Japanese  

  • 流体音に於ける移動境界問題III

    小林泰三

    物理学会 2012年秋期大会  

    　More details

    Event date： 2012.09.18 - 2012.09.21   Language：Japanese  

  • 連続時間系トンネル共鳴状態へのカオスの影響

    大屋俊弘

    物理学会2012年秋期大会  

    　More details

    Event date： 2012.09.18 - 2012.09.21   Language：Japanese  

  • Competition between instanton and non-instanton in multidimensional barrier tunneling

    K.Takahashi

    XXXII Dynamics Days Europe  University of Gothenburg

    　More details

    Event date： 2012.09.02 - 2012.09.07   Language：English  

  • カオスにおけるトンネル確率の異常増幅

    大屋俊弘

    物理学会第67回年次大会 第2分冊 

    　More details

    Event date： 2012.03.24 - 2012.03.27   Language：Japanese  

  • インスタントンvs.非インスタントントンネル効果：その量子論的解釈

    本人

    物理学会第67回年次大会 第2分冊 

    　More details

    Event date： 2012.03.24 - 2012.03.27   Language：Japanese  

  • 流体音に於ける移動境界問題III

    岩崎拓也

    物理学会 第67回年次大会 第2分冊 

    　More details

    Event date： 2012.03.24 - 2012.03.27   Language：Japanese  

  • インスタントン v.s. 非インスタントントンネル効果：その半古典的及び量子論的解釈

    本人

    基研研究会「物理と情報の階層構造 ―情報を接点とした諸階層の制御と創発―」  京都大学基礎物理学研究所

    　More details

    Event date： 2012.01.05 - 2012.01.07   Language：Japanese  

  • 流体音に於ける移動境界問題：音源としての移動境界

    小林泰三

    物理学会2011年秋季大会 第2分冊 

    　More details

    Event date： 2011.09.21 - 2011.09.24   Language：Japanese  

  • クラリネットのレジスターホールの機能：２重遅延モデルを用いた解析

    本人

    物理学会2011年秋季大会 第2分冊 

    　More details

    Event date： 2011.09.21 - 2011.09.24   Language：Japanese  

  • 非インスタントントンネル効果2：量子論的解釈

    本人

    物理学会2011年秋季大会 第2分冊 

    　More details

    Event date： 2011.09.21 - 2011.09.24   Language：Japanese  

  • 非インスタントントンネル効果1：半古典的解釈

    本人

    物理学会2011年秋季大会 第2分冊 

    　More details

    Event date： 2011.09.21 - 2011.09.24   Language：Japanese  

  • Study on aerodynamic sound of small air-reed instruments

    K.Takahashi

    XXXI Dynamics Days Europe  Carl von Ossietzky University

    　More details

    Event date： 2011.09.12 - 2011.09.16   Language：English  

  • 3次元エアリード楽器の流体音源と発振特性

    本人

    京都大学数理解析研究所研究会「オイラー方程式の数理：カルマン渦列と非定常渦運動100年」 

    　More details

    Event date： 2011.07.20 - 2011.07.22   Language：Japanese  

  • 非インスタントントンネル効果：その半古典的解析

    本人

    物理学会66回年次大会 第2分冊 

    　More details

    Event date： 2011.03   Language：Japanese  

  • 非インスタントントンネル効果：半古典論および量子論的解釈

    本人

    基礎物理学研究所　研究会「量子科学における双対性とスケール」 

    　More details

    Event date： 2010.11.04 - 2010.11.06   Language：Japanese  

  • 摂動周期の変化によるトンネルスペクトルの構造的変化

    本人

    物理学会65回秋季大会 第2分冊 

    　More details

    Event date： 2010.09.23 - 2010.09.26   Language：Japanese  

  • 実験動画と演習を組み合わせたe-ラーニング教材

    本人

    日本物理学科講演概要集　物理学会64回秋季大会　第２分冊 

    　More details

    Event date： 2010.09.23 - 2010.09.26   Language：Japanese  

  • 実験動画と演習を組み合わせたe-ラーニング教材の作成

    2010年(平成22年)秋季第71回応用物理学会学術講演会 

    　More details

    Event date： 2010.09.14 - 2010.09.17   Language：Japanese  

  • Change of tunneling mechanism for multi-dimensional barrier systems with control parameters and initial condition

    Dynamics Days Europe 2010 

    　More details

    Event date： 2010.09.06 - 2010.09.10   Language：English  

  • 2次元および3次元モデルを用いたエッジトーンの数値解析

    本人

    京都大学数理解析研究所研究会「オイラー方程式の数理：力学と変分原理250年」 

    　More details

    Event date： 2010.07.12 - 2010.07.14   Language：Japanese  

  • 圧縮性LESを用いた小型エアリード楽器の数値解析

    本人

    物理学会65回年次大会 第2分冊 

    　More details

    Event date： 2010.03.20 - 2010.03.23   Language：Japanese  

  • 複素領域の安定多様体・不安定多様体：その近傍の流れ

    本人

    物理学会65回年次大会 第2分冊 

    　More details

    Event date： 2010.03.20 - 2010.03.23   Language：Japanese  

  • 3次元LESによるオカリナの発音機構の解析

    本人

    物理学会65回秋期大会 第2分冊 

    　More details

    Event date： 2010.03.20 - 2010.03.23   Language：Japanese  

  • Applicability of compressible LES to reproduction ofsound vibration of an air-reed instrument

    Open Source CFD International Conference 2009(CD-ROM) 

    　More details

    Event date： 2009.11.12 - 2009.11.13   Language：English  

  • 複素領域の安定・不安定多様体１：不安定周期軌道近傍の構造

    本人

    物理学会64回秋季大会 第2分冊 

    　More details

    Event date： 2009.09.25 - 2009.09.28   Language：Japanese  

  • 圧縮性LESを用いた小型エアリード楽器の数値解析

    本人

    物理学会64回秋季大会 第2分冊 

    　More details

    Event date： 2009.09.25 - 2009.09.28   Language：Japanese  

  • 複素領域の安定・不安定多様体１：特異点を越えた大域解への接続

    本人

    物理学会64回秋季大会 第2分冊 

    　More details

    Event date： 2009.09.25 - 2009.09.28   Language：Japanese  

  • エアリード楽器の発音機構：流体と音の相互作用の解析

    本人

    京都大学数理解析研究所研究会“オイラー方程式の数理：渦運動と音波150 年” 

    　More details

    Event date： 2009.07.21 - 2009.07.23   Language：Japanese  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析VI

    小林泰三

    物理学会第64回年次大会 

    　More details

    Event date： 2009.03.27 - 2009.03.30   Language：Japanese  

  • 複素領域におけるλ補題

    本人

    物理学会64回年次大会 第2分冊 

    　More details

    Event date： 2009.03.27 - 2009.03.30   Language：Japanese  

  • e-ラーニングを用いた物理リメディアル教育3

    本人

    物理学会64回年次大会 

    　More details

    Event date： 2009.03.27 - 2009.03.30   Language：Japanese  

  • 実験動画を利用した物理小テスト問題の作成

    山口真之介

    Bbカンファレンス 2008 in 沖縄ポスター 

    　More details

    Event date： 2008.11.28 - 2008.11.29   Language：Japanese  

  • Itinerant dynamics approach between multiple scales

    T.Kobayashi

    What is Creativity?-Emergent Phenomena in Complex Adaptive Systems 

    　More details

    Event date： 2008.10.20 - 2008.10.22   Language：English  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析V

    小林泰三

    物理学会2008年秋期大会第2分冊 

    　More details

    Event date： 2008.09.20 - 2008.09.23   Language：Japanese  

  • 多自由度障壁トンネル効果におけるトンネル機構の摂動パラメーター依存性

    本人

    物理学会63回年次大会 日本物理学会講演概要集 

    　More details

    Event date： 2008.09.20 - 2008.09.23   Language：Japanese  

  • Sounding mechanism of Woodwind single-reed instruments

    Dynamics Days Asia-Pacific 5, The 5th International Conference on Nonlinear Science 

    　More details

    Event date： 2008.09.09 - 2008.09.12   Language：English  

  • Vortex Sound Source Around a 2D Whistle

    T.Kobayashi

    Dynamics Days Asia-Pacific 5, The 5th International Conference on Nonlinear Science 

    　More details

    Event date： 2008.09.09 - 2008.09.12   Language：English  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析III

    小林泰三

    物理学会63回年次大会 

    　More details

    Event date： 2008.03.22 - 2008.03.26   Language：Japanese  

  • 2自由度自励系におけるカオス的トンネル効果

    本人

    物理学会63回年次大会 

    　More details

    Event date： 2008.03.22 - 2008.03.26   Language：Japanese  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析IV

    高見利也

    物理学会63回年次大会 

    　More details

    Event date： 2008.03.22 - 2008.03.26   Language：Japanese  

  • e-ラーニングを用いた物理リメディアル教育2

    本人

    物理学会63回年次大会 

    　More details

    Event date： 2008.03.22 - 2008.03.26   Language：Japanese  

  • 初等物理教育のためのリメディアル教材の開発

    大西淑雅

    平成19年度情報処理教育研究集会講演論文集 

    　More details

    Event date： 2007.11.09 - 2007.11.10   Language：Japanese  

  • 多次元障壁トンネル効果における半古典論的機構の摂動強度に対する変化

    本人

    物理学会62回年次大会 日本物理学会講演概要週 

    　More details

    Event date： 2007.09.21 - 2007.09.24   Language：Japanese  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析I

    高見利也

    物理学会62回年次大会 

    　More details

    Event date： 2007.09.21 - 2007.09.24   Language：Japanese  

  • 楽器に於ける渦音の役割：流体と音波の連成計算による解析II

    小林泰三

    物理学会62回年次大会 

    　More details

    Event date： 2007.09.21 - 2007.09.24   Language：Japanese  

  • Moodleを用いたリメディアル教材の開発

    大西淑雅

    教育システム情報学会第32回全国大会講演論文集 

    　More details

    Event date： 2007.09.12 - 2007.09.14   Language：Japanese  

  • 流体と音波の連成シミュレーション

    本人

    分子研研究会 「分子科学における連成シミュレーションの基礎理論と応用」 

    　More details

    Event date： 2007.08.29 - 2007.08.31   Language：Japanese  

  • シングルリード木管楽器の発音機構の管体形状における変化

    本人

    日本物理学会講演概要集　第2分冊 

    　More details

    Event date： 2007.03.18 - 2007.03.21   Language：Japanese  

  • e-ラーニングを用いた物理リメディアル教育

    本人

    日本物理学会講演概要集　第2分冊 

    　More details

    Event date： 2007.03.18 - 2007.03.21   Language：Japanese  

  • カオス的トンネル効果を用いたトンネル確率の制御2

    本人

    日本物理学会講演概要集　第2分冊 

    　More details

    Event date： 2007.03.18 - 2007.03.21   Language：Japanese  

  • 管楽器の力学モデルの現状と展望

    本人

    第2回 連成シミュレーションフォーラム 

    　More details

    Event date： 2007.02.02 - 2007.02.03   Language：Japanese  

  • カオス的トンネル効果を用いたトンネル確率の制御

    本人

    日本物理学会講演概要集　第2分冊 

    　More details

    Event date： 2006.09.23 - 2006.09.26   Language：Japanese  

  • 連続時間周期摂動系におけるカオス的トンネル効果とその制御

    本人

    特定領域研究「強レーザー光子場における分子制御」研究成果報告会 

    　More details

    Event date： 2006.09.14 - 2006.09.16   Language：Japanese  

  • 安定多様体誘導型トンネル効果-トンネル確率の異常増大とべき的に長いトンネル時間-

    本人

    特定領域研究「強レーザー光子場における分子制御」第8回全体会議 

    　More details

    Event date： 2006.03.10 - 2006.03.11   Language：Japanese  

  • 安定多様体誘導トンネル効果-トンネル確率の異常増大のからくり-

    本人

    特定領域研究「強レーザー光子場における分子制御」第７回全体会議 

    　More details

    Event date： 2005.05.13 - 2005.05.14   Language：Japanese  

  • Classical mechanism of multidimensional barrier tunneling

    Geometric structures of phase space in multidimmensional chaos 

    　More details

    Event date： 2004.10.26 - 2004.11.01   Language：English  

  • カオス的トンネル効果－S行列に現われる不安定多様体の影－

    本人

    特定領域研究「強レーザー光子場における分子制御」第５回全体会議 

    　More details

    Event date： 2004.05.14 - 2004.05.15   Language：Japanese  

  • カオスに導かれたトンネル軌道：連続時間系の場合

    本人

    日本物理学会講演概要集　第2分冊 

    　More details

    Event date： 2004.03.27 - 2004.03.30   Language：Japanese  

  • カオス的トンネル効果－S行列に現われる不安定多様体の影－

    本人

    力学系理論と物質科学Ⅱ 

    　More details

    Event date： 2004.03.03 - 2004.03.05   Language：Japanese  

  • Chaos guides barrier tunneling particle

    International Symposium Ultrafast Intense Laser Science 2:Technology Trends, Propagation and Interaction 

    　More details

    Event date： 2003.09.25 - 2003.09.29   Language：English  

  • 連続時間周期摂動系におけるトンネル効果の複素古典論を用いた解析

    本人

    特定領域研究「強レーザー光子場における分子制御」第３回全体会議 

    　More details

    Event date： 2003.05.24   Language：Japanese  

  • Semiclassical Mechanism of Tunneling Problems of Strongly Coupled 1.5-Dimensional Scattering Systems

    International Workshop on Chaos and Interactions in Complex Quantum Systems 

    　More details

    Event date： 2002.09.09 - 2002.09.13   Language：English  

  • 1.5自由度障壁トンネル効果の複素半古典論を用いた解析

    本人

    早稲田大学基礎物理学シンポジウム-量子論の新展開- 

    　More details

    Event date： 2002.03.18 - 2002.03.19   Language：Japanese  

  • 障壁トンネル過程への真性多次元効果：古典特異点の特異運動が生み出す量子効果

    池田研介

    『物質設計と反応制御の分子物理化学』最終公開シンポジウム 

    　More details

    Event date： 2002.01.21 - 2002.01.23   Language：Japanese  

  • S行列に現れるカオス的トンネル効果の痕跡

    本人

    日本物理学会講演概要集　第55回年次大会 

    　More details

    Event date： 2000.09.22 - 2000.09.25   Language：Japanese  

  • S行列に現れるカオス的トンネル効果

    本人

    分子研短期研究会 強光子場の化学 

    　More details

    Event date： 2000.09.04 - 2000.09.05   Language：Japanese  

  • 2自由度系におけるFringed Tunneling

    吉本章雄

    日本物理学会講演概要集　2000年春の分科会 

    　More details

    Event date： 2000.03.22 - 2000.03.25   Language：Japanese  

  • Scattering map modelにおけるchaotic tunneling

    大西孝明

    日本物理学会講演概要集　2000年春の分科会 

    　More details

    Event date： 2000.03.22 - 2000.03.25   Language：Japanese  

  • 複素半古典論を用いた1.5自由度障壁トンネル効果の解析

    本人

    日本物理学会講演概要集　1999年秋の分科会 

    　More details

    Event date： 1999.09.24 - 1999.09.27   Language：Japanese  

  • 複素古典力学系における特異点と複素半古典論

    本人

    日本物理学会講演概要集第54巻第1号第３分冊（第54回年会） 

    　More details

    Event date： 1999.03.28 - 1999.03.31   Language：Japanese  

  • 複素古典力学系における特異点の移動と積分路スイッチのメカニズム

    本人

    日本物理学会講演概要集　１９９８年秋の分科会 

    　More details

    Event date： 1998.09.25 - 1998.09.28   Language：Japanese  

  • 散乱モデルによるkick系の半古典論

    大西孝明

    日本物理学会講演概要集第53巻第２号（1998年秋の分科会） 

    　More details

    Event date： 1998.09.25 - 1998.09.28   Language：Japanese  

  • 波源を組み込んだSchrodinger方程式による定常散乱問題の数値解法

    本人

    日本物理学会講演概要集　日本物理学会第５３回年会 

    　More details

    Event date： 1998.03.30 - 1998.04.02   Language：Japanese  

  • 周期変動するポテンシャル障壁による散乱問題

    本人

    基研短期研究会「ハミルトン力学系とカオス」 

    　More details

    Event date： 1997.11   Language：Japanese  

  • 周期変動するポテンシャルにおける散乱問題I：波動行列,S行列,半古典近似

    本人

    日本物理学会講演概要集　1997年秋の分科会 

    　More details

    Event date： 1997.10.05 - 1997.10.08   Language：Japanese  

  • クラリネットライクな楽器に励起される波動波形及び遷移構造の研究Ⅱ

    橘崇哲

    日本物理学会講演概要集　1997年秋の分科会 

    　More details

    Event date： 1997.10.05 - 1997.10.08   Language：Japanese  

  • 周期変動するポテンシャルにおける散乱問題Ⅱ：トンネル効果と複素半古典近似

    本人

    日本物理学会講演概要集　1997年秋の分科会 

    　More details

    Event date： 1997.10.05 - 1997.10.08   Language：Japanese  

  • クラリネットライクな楽器に励起される波動波形及び遷移構造の研究Ⅱ

    橘崇哲

    日本音響学会　平成9年度秋季研究発表会　論文集 

    　More details

    Event date： 1997.09.17 - 1997.09.19   Language：Japanese  

  • クラリネットライクな楽器に励起される波動波形及び遷移構造の研究

    橘崇哲

    日本物理学会講演概要集　1996年秋の分科会 

    　More details

    Event date： 1996.10.01 - 1996.10.04   Language：Japanese  

  • クラリネットライクな楽器に励起される波動波形及び遷移構造の研究

    橘崇哲

    日本音響学会　平成8年度秋季研究発表会　論文集 

    　More details

    Event date： 1996.09.26 - 1996.09.28   Language：Japanese  

  • 周期変動する散乱体における散乱問題と複素半古典近似

    本人

    日本物理学会　第51回年会 

    　More details

    Event date： 1996.03.31 - 1996.04.03   Language：Japanese  

  • 一自由度周期外力系における量子トンネル効果と複素半古典近似

    本人

    日本物理学会　第50回年会 

    　More details

    Event date： 1995.03.28 - 1995.03.31   Language：Japanese  

  • 一自由度周期外力系における量子トンネル効果とカオスⅡ

    本人

    日本物理学会　1994年秋の分科会 

    　More details

    Event date： 1994.09.02 - 1994.09.05   Language：Japanese  

  • McIntyre,Schumacher,Woodhouseモデルによるクラリネットのシュミレーション

    橘崇哲

    日本物理学会講演概要集　第49回年会 

    　More details

    Event date： 1994.03.28 - 1994.03.31   Language：Japanese  

  • 一自由度周期外力系における量子トンネル効果とカオス

    熊谷亮一

    日本物理学会講演概要集　第49回年会 

    　More details

    Event date： 1994.03.28 - 1994.03.31   Language：Japanese  

  • McIntye,Schumucher,Woodhouseモデルによるクラリネットのシミュレーション

    橘崇哲

    基研モレキュール研究会「音響系・光学系におけるカオス」 

    　More details

    Event date： 1994.01   Language：Japanese  

  • スムーズな周期外力系の準固有状態に現われる位相の複雑さ

    本人

    基研短期研究会「保存力学系カオスにおける古典論と量子論」 

    　More details

    Event date： 1992.10   Language：Japanese  

  • 量子系におけるシンプレクティック積分法

    本人

    日本物理学会　1992年秋の分科会予稿集 

    　More details

    Event date： 1992.09.25 - 1992.09.28   Language：Japanese  

  • 統計力学極限における古典軌道アンサンブル

    本人

    基研短期研究会「少数多体系における量子カオスと関連する諸問題」 

    　More details

    Event date： 1991.10   Language：Japanese  

  • 伏見関数と古典軌道アンサンブ

    本人

    日本物理学会　1991年春の分科会講演予稿集 

    　More details

    Event date： 1991.03   Language：Japanese  

  • 力学量期待値の時間発展と古典軌道アンサンブル

    本人

    基研長期研究会「カオスとその周辺」 

    　More details

    Event date： 1990.12   Language：Japanese  

  • Dynamical fluctuation of observable and the ensemble of classical trajectories

    Dyanamics days 

    　More details

    Event date： 1990.06   Language：English  

  • カオスにおける量子ゆらぎ

    本人

    日本物理学会　第45回年会予稿集 

    　More details

    Event date： 1990.03.30 - 1990.04.02   Language：Japanese  

  • 力学量の時間発展と量子カオス

    本人

    基研長期研究会「カオスとその周辺」 

    　More details

    Event date： 1989.12   Language：Japanese  

  • 量子カオスにおける波動関数の長時間発展

    本人

    日本物理学会 

    　More details

    Event date： 1989.04   Language：Japanese  

  • Weyl変換された古典系と量子カオス

    本人

    日本物理学会　第44回年会講演予稿集 

    　More details

    Event date： 1989.03.28 - 1989.03.31   Language：Japanese  

  • 量子カオスにおける力学量の時間発展

    本人

    日本物理学会　1988年秋の分科会講演予稿集　第３分冊 

    　More details

    Event date： 1988.10.03 - 1988.10.06   Language：Japanese  

  • カオスにおける波動関数の統計的特徴づけ

    首藤啓

    日本物理学会 

    　More details

    Event date： 1988.04   Language：Japanese  

  • 量子カオスにおける力学量の時間発展Ⅱ

    本人

    基研長期研究会「カオスとその周辺」 

    　More details

    Event date： 1988.04   Language：Japanese  

  • 量子カオスと伏見関数

    本人

    基研研究会「カオスとその周辺」 

    　More details

    Event date： 1985.12   Language：Japanese  

  • カオスと伏見表示の量子力学

    本人

    日本物理学会 

    　More details

    Event date： 1985.10   Language：Japanese  

  • 量子化カオスにおける波束の時間発展

    本人

    日本物理学会 

    　More details

    Event date： 1985.04   Language：Japanese  

  • 量子カオスとウィグナー関数

    本人

    基研研究会「カオスとその周辺」 

    　More details

    Event date： 1984.12   Language：Japanese  

  • 積分可能なHamilton系に対する外力の応答

    本人

    第17回天体力学研究会集録 

    　More details

    Event date： 1984.02   Language：Japanese  

  • カオスと外部擾乱I

    本人

    日本物理学会 

    　More details

    Event date： 1982.04   Language：Japanese  

  • カオスにおける外力の応答

    斉藤信彦

    日本物理学会 

    　More details

    Event date： 1981.03   Language：Japanese  

  • 非線形振動子系の外力に対する応答

    広岡一

    日本物理学会 

    　More details

    Event date： 1980.10   Language：Japanese  

▼display all

Lectures

  • Mode Selection Rules for a Two-Delay System with Positive and Negative Feedbacks

    2021.03 

    　More details

    Event date： 2021.03.27 - 2021.03.28   Language：Japanese   Presentation type：Invited lecture  

  • 管楽器の大規模流体音響解析

    第12回JHPCN拠点シンポジウム  2020.07  JHPCN

    　More details

    Event date： 2020.07.09   Language：Japanese   Presentation type：Invited lecture  

  • クラリネットのレジスターキーと二重遅延模型

    日本物理学会第７０回年会 フレンドシップミーティング  2015.03  journal of physical society of Japan

    　More details

    Presentation type：Invited lecture   Venue：早稲田大学  

  • 非線形物理学から見た管楽器の発音機構

    第6 回レーザーカオス・ノイズダイナミックスとその応用専門委員会  2013.09 

    　More details

    Presentation type：Invited lecture   Venue：石垣市  

  • Stable-unstable manifold guided tunneling for continuous time systems

    Advanced Study Group: Focus week on Dynamical tunneling  2011.06  Max-Planck-Institur fu ̈r Physick Komplexer Systeme

    　More details

    Presentation type：Invited lecture   Venue：Deresden  

  • 圧縮性LES を用いたエアリード楽器の発音機構の数値解析

    サウンド財団研究助成講演会  2011.01  サウンド財団

    　More details

    Presentation type：Invited lecture   Venue：浜松市  

▼display all

Press

  • 明治学園SSH” 楽器の物理学” での講演およびインタビューがFBS” めんたいわいど” で放映

    高橋公也

    FBS  2009.11.03

Grants-in-Aid for Scientific Research

  • 複素空間における「古典力学の基礎問題」と非可積分トンネル効果

    Grant number：15H03701  2015.04 - 2018.03   基盤研究(B)

  • 「力学の基本問題」と多次元トンネル効果

    Grant number：24340094  2012.04 - 2015.03   基盤研究(B)

  • 流体音響理論を用いたエアリード楽器の解析

    Grant number：23540455  2011.04 - 2014.03   基盤研究(C)

  • 多次元トンネル効果のカオス理論:基礎と応用

    Grant number：20340100  2008.04 - 2011.03   基盤研究(B)

  • 連成解析を用いた流体音源を持つエアリード楽器の研究

    Grant number：20654035  2008.04 - 2011.03   萌芽研究→挑戦的萌芽研究

  • e-ラーニングを用いた物理リメディアル教育の実践

    Grant number：19300263  2007.04 - 2011.03   基盤研究(B)

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    Grant number：16032210  2004.05 - 2006.03   特定領域研究

  • 連続時間周期摂動系におけるトンネル効果の複素半古典論を用いた解析

    Grant number：15035212  2003.05 - 2004.03   特定領域研究

  • 多次元トンネル効果と複素古典力学

    Grant number：13640410  2001.05 - 2005.03   基盤研究(C)

  • カオス的トンネル効果の研究

    Grant number：10640395  1998.05 - 2001.03   基盤研究(C)

  • 木管楽器の非線形振動に現れる分岐現象の研究

    Grant number：06855007  1994.05 - 1995.03   奨励研究(A)

▼display all

Contracts

  • 管楽器および音響機器の大規模流体音響解析

    2022.04 - 2023.03

    　More details

    Grant type：Joint research

    九州大学および名古屋大学の大型計算機の無償利用(総額250万円超相当)
    国際会議参加費、論文投稿料の先方払い

  • 管楽器および音響機器の大規模流体音響解析

    2021.04 - 2022.03

    　More details

    Grant type：Joint research

    九州大学および名古屋大学の大型計算機の無償利用(総額150万円超相当)
    国際会議参加費、論文投稿料の先方払い

  • 圧縮性DNSを用いた管楽器の流体音響解析

    2019.04 - 2022.03

    　More details

    Grant type：Joint research

    研究費は先方負担　
    2019年度261千円
    2020年度248千円
    2021年度233千円

  • 管楽器の大規模流体音響解析

    2019.04 - 2021.03

    　More details

    Grant type：Other joint research

    九州大学および名古屋大学の大型計算機の無償利用(総額150万円超相当)
    国際会議参加費、論文投稿料の先方払い
    2019年度実績(国際会議参加費約50万円)

  • 高性能，高生産性を実現する大規模メモリ・並列処理システムソフトウエアの研究

    2019.04 - 2020.03

    　More details

    Grant type：Joint research

    九州大学および東京工業大学のスパーコンピューターの無償利用(100万円相当)

  • エッジトーンの音響流体解析

    2017.04 - 2019.03

    　More details

    Grant type：Joint research

    研究費は先方負担　206千円+233千円

  • エアリード楽器および音響機器における大規模音響流体解析

    2017.04 - 2019.03

    　More details

    Grant type：Joint research

    九州大学および北海道大学の大型計算機の無償利用

  • エッジトーンの音響流体解析

    2016.04 - 2017.03

    　More details

    Grant type：Joint research

    研究費は先方負担　206千円

  • 曲管を有する管楽器を対象とした大規模並列流体音シミュレーション

    2014.04 - 2015.03

    　More details

    Grant type：Joint research

  • 移動境界問題及び連成計算の大規模流体シミュレーションと動的負荷分散の評価

    2012.04 - 2013.03

    　More details

    Grant type：Joint research

  • 移動境界問題の大規模流体シミュレーションと動的負荷分散の評価

    2011.04 - 2012.03

    　More details

    Grant type：Joint research

  • 移動境界問題の大規模流体シミュレーションと動的負荷分散の評価

    2010.04 - 2011.03

    　More details

    Grant type：Joint research

▼display all

Social activity outside the university

  • オープンキャンパス

    Role(s)：Presenter,　Demonstrator

    2019.07.13 - 2019.07.14

    　More details

    Audience： High school students

    オープンラボに参加

  • オープンキャンパス

    Role(s)：Lecturer

    2018.07.14 - 2018.07.15

    　More details

    Type：University open house

    オープンラボに参加

  • 管楽器はなぜなるのか？

    2017.10.13

    　More details

    Audience： High school students

    Type：Visiting lecture

    宇土高校SSH

  • オープンキャンパス

    2017.07.15 - 2017.07.16

    　More details

    Type：University open house

    オープンラボに参加

  • オープンキャンパス

    2016.07.16 - 2016.07.17

    　More details

    Type：University open house

    オープンラボに参加

  • 管楽器はどうして鳴るか－なぜ音は出るの？－

    2013.09.13

    　More details

    Audience： High school students

    Type：Visiting lecture

    福岡県立京都高等学校

  • SSH” 楽器の物理学実習”

    2013.07.10

    　More details

    Audience： Junior students

    Type：Visiting lecture

    明治学園　中学２年　　

  • 市民講演会「回転運動の力学～ふしぎなおもちゃから自然の脅威まで～」

    2013.03.09

    　More details

    Type：Lecture

    九州大学主催、本学情報工学部共催
    九州大学福本康秀教授とともに市民講演会の立案企画

  • SSH” 楽器の物理学実習”

    2012.07.11

    　More details

    Audience： Junior students

    Type：Visiting lecture

    明治学園　中学２年　　

  • 管楽器はどうして鳴るか－なぜ音は出るの？－

    2012.07.05

    　More details

    Audience： Junior students

    Type：Visiting lecture

    飯塚日新館中学校　3年

  • サイエンスカフェ

    2012.06.01

    　More details

    Type：Science cafe

    第８回　サイエンスカフェ　講師
    「管楽器の発音メカニズムとシミュレーション」

  • eラーニングを用いた物理リメディアル教育

    2011.08.12

    　More details

    Audience： High school students

    Type：Seminar, workshop

    講師：高橋公也
    主催者：九州工業大学
    役割：高校教員対象研修会　分科会２講師
    会場：情報工学部

  • 「楽器の物理学実習」“オルガンの音の出るしくみ”

    2011.07.08

    　More details

    Audience： Junior students

    Type：Visiting lecture

    明治学園　中学２年　　

  • eラーニングを用いた物理リメディアル教育

    2010.08.17

    　More details

    Audience： High school students

    Type：Seminar, workshop

    講師：高橋公也
    主催者：九州工業大学
    役割：高校教員対象研修会　分科会２講師
    会場：情報工学部

  • 物理リメディアルフォーラム２

    2010.01.15

    　More details

    Type：Seminar, workshop

    フォーラムを主催、発表をおこなった。

  • オープンキャンパス

    2009.08.10 - 2009.08.11

    　More details

    Type：University open house

    オープンラボに参加

  • SSH” 楽器の物理学”

    2009.07.10

    　More details

    Audience： Junior students

    Type：Visiting lecture

    明治学園　中学２年　　

  • 物理リメディアルフォーラム

    2009.02.05

    　More details

    Type：Seminar, workshop

    フォーラムを主催、発表をおこなった。

▼display all