Papers - TAKAHASHI Akira

Extraction of important degrees of freedom in quantum dynamics using singular value decomposition: Application to linear optical spectrum in two-dimensional Mott insulators Invited Reviewed

J. Tokimoto , S. Ohmura , A. Takahashi, K. Iwano, and H. Okamoto

PHYSICAL REVIEW B   109   195150   2024.05

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DOI： 10.1103/PhysRevB.109.195150

Orbital hybridization of donor and acceptor to enhance the conductivity of mixed-stack complexes Invited Reviewed

Tomoko Fujino, Ryohei Kameyama, Kota Onozuka, Kazuki Matsuo, Shun Dekura, Tatsuya Miyamoto, Zijing Guo, Hiroshi Okamoto, Toshikazu Nakamura, Kazuyoshi Yoshimi, Shunsuke Kitou, Taka-hisa Arima, Hiroyasu Sato, Kaoru Yamamoto, Akira Takahashi, Hiroshi Sawa, Yuiga Nakamura, and Hatsumi Mori

Nature Communications   15   3028   2024.04

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DOI： 10.1038/s41467-024-47298-1

Ultrafast polarization control in κ-(BEDT-TTF)₂X Reviewed International journal

Shu Ohmura, Jun Tokimoto, and Akira Takahashi

PHYSICAL REVIEW B   104   134302   2021.10

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DOI： 10.1103/PhysRevB.104.134302

Effective model of one-dimensional extended Hubbard systems: Application to linear optical spectrum calculations in large systems based on many-bodyWannier functions Reviewed

S. Ohmura, A. Takahashi, K. Iwano, T. Yamaguchi, K. Shinjo, T. Tohyama, S. Sota, and H. Okamoto

PHYSICAL REVIEW B   100   235134   2019.12

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DOI： 10.1103/PhysRevB.100.235134

Nonadiabatic quantum fluctuations in the neutral ground state of tetrathiafulvalene-p-chloranil Reviewed

Yuko Watanabe, Hideo Ando, Akira Takahashi, Norikazu Tomita

PHYSICAL REVIEW B   100   205205   2019.11

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DOI： 10.1103/PhysRevB.100.205205

Terahertz pulse induced transitions between ionic and neutral phases and electronic polarization reversal in TTF-CA Reviewed

Shu Ohmura, Tomohito Mase, Akira Takahashi

PHYSICAL REVIEW B   100   035116   2019.07

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DOI： 10.1103/PhysRevB.100.035116

Metallic states induced by quantum lattice fluctuations Reviewed

Norikazu Tomita, Akira Takahashi

PHYSICAL REVIEW B   99   035203   2019.01

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DOI： 10.1103/PhysRevB.99.035203

Charge and dielectric response to THz pulse in the charge ordered phase of α-(BEDT-TTF)₂I₃ Reviewed

Shinnosuke Kuniki, Shu Ohmura, Akira Takahashi

PHYSICAL REVIEW B   98   165149   2018.10

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DOI： 10.1103/PhysRevB.98.165149

Photoinduced transition to charge-ordered phases from dynamical localization in the metallic phase of α-(BEDT-TTF)₂I₃ Reviewed

Koudai Oya, Akira Takahashi

PHYSICAL REVIEW B   97   115147   2018.03

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DOI： 10.1103/PhysRevB.97.115147

Instantaneous charge and dielectric response to terahertz pulse excitation in TTF-CA Reviewed

Hiroki Gomi, Naoto Yamagishi, Tomohito Mase, Takeshi J. Inagaki, and Akira Takahashi,

PHYSICAL REVIEW B   95   094116   2017.03

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DOI： 10.1103/PhysRevB.95.094116

Ferroelectric charge order enhanced by magnetic frustration in dimer Mott insulators Reviewed

Hiroki Gomi, Takeshi J. Inagaki, Akira Takahashi

PHYSICAL REVIEW B   93   035105   2016.01

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DOI： 10.1103/PhysRevB.93.035105

Quantum Lattice Fluctuations in the Charge Density Wave State beyond the Adiabatic Approximation Reviewed

Keisuke Shida, Yuko Watanabe, Hiroki Gomi, Akira Takahashi, Norikazu Tomita

Journal of the Physical Society of Japan   84   124803   2015.11

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DOI： 10.7566/JPSJ.84.124803

Correlation Strength Crossover of Auger Recombination in One-Dimensional Mott Insulators Reviewed

Hiroki Gomi, Hisashi Hatano, Takeshi J. Inagaki, and Akira Takahashi

Journal of the Physical Society of Japan   83   094718   2014.08

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DOI： http://dx.doi.org/10.7566/JPSJ.83.094718

Dynamics of Photoinduced Phase Transition from a Dimer Mott Insulator to a Metal Reviewed

Hiroki Gomi, Takashi Kawatani, Takeshi J. Inagaki, and Akira Takahashi

Journal of the Physical Society of Japan   83   094714   2014.08

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DOI： 10.7566/JPSJ.83.094714

Ferroelectric states induced by dimer lattice disorder in dimer Mott insulators Reviewed

Hiroki Gomi, Masahiro Ikenaga, Yasuhiro Hiragi, Daiki Segawa, Akira Takahashi, Takeshi J. Inagaki, and Masaki Aihara

PHYSICAL REVIEW B   87   195126   2013.05

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DOI： 10.1103/PhysRevB.87.195126

Photoexcited States in Dimer Mott Insulators κ-(BEDT-TTF)₂X Reviewed

T. Tatsumi, H. Gomi, A. Takahashi, Y. Hirao, and M. Aihara

Journal of the Physical Society of Japan   81   034712   2012.02

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Auger Recombination of Photogenerated Charges in One-Dimensional Mott Insulators Reviewed

M. Segawa, A. Takahashi, H. Gomi, and M. Aihara

Journal of the Physical Society of Japan   80   084721   2011.08

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DOI： 10.1143/JPSJ.80.084721

Photogenerated metallic states in charge-ordered insulators in (BEDT-TTF)2X Reviewed

H. Gomi, A. Takahashi, T. Tastumi, S. Kobayashi, K. Miyamoto, J.D. Lee, M. Aihara

J. Phys. Soc. Jpn.   80   034709-1 - 10   2011.03

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Purely electronic terahertz polarization in dimer Mott insulators Reviewed

H. Gomi, T. Imai, A. Takahashi, M. Aihara

Phys. Rev. B   82 ( 3 )   035101-1 - 7   2010.07

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Absence of Transition in Photoexcited States across the One-Dimensional CDW-SDW Phase Boundary Reviewed

T. Fukui, T. Konishi, A. Takahashi, M. Aihara

J. Phys. Soc. Jpn.   78 ( 4 )   44713-1 - 10   2009.04

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Disorder effects on relaxation of photoinduced metallic phase in one-dimensional Mott insulators Reviewed

Mami Segawa, Akira Takahashi, Masaki Aihara

Journal of Physics Conference Series   148   012062-1 - 3   2009.01

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Dynamics of photoinduced insulator-metal transition in one-dimensional Mott insulators Reviewed

A. Takahashi

Journal of Physics Conference Series   148   012055-1 - 4   2009.01

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Effect of disorder on the relaxation of photoexcited states in one-dimensional Mott insulators Reviewed

M. Segawa, A. Takahashi, M. Aihara

Physica Status Solidi (c)   6   256 - 259   2009.01

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Photoinduced insulator-metal transition in one dimensional Mott insulators Reviewed

Akira Takahashi, Hisashi Itoh, Masaki Aihara

Phys. Rev. B   77 ( 20 )   205105-1 - 8   2008.05

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Transient optical response of strongly correlated low-dimensional electron systems Reviewed

Akira Takahashi, Masaki Aihara, Hiroki Gomi, Hisashi Itoh

J. Lumin.   122-123   512 - 516   2007.01

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Light absorption spectrum of two-dimensional Mott insulators Reviewed

H. Itoh, A. Takahashi, M. Aihara

Phys. Rev. B   73 ( 7 )   075110-1 - 10   2006.02

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Nonlinear electrostatic response of strongly correlated one-dimensional and two-dimensional electron systems Reviewed

Yukinobu Koyama, Akira Takahashi, Masaki Aihara

Solid State Commun.   133 ( 12 )   785 - 789   2005.03

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Stability of photoinduced superconducting states in strongly correlated two-dimensional Reviewed

H. Gomi, T. Ueda, A. Takahashi, M. Aihara

Int. J. Mod. Phys.   19   1 - 3   2005.01

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Photogenerated holon-doublon cluster states in strongly correlated low-dimensional electron systems Reviewed

Hiroki Gomi, Akira Takahashi, Toshihiro Ueda, Hisashi Itoh, Masaki Aihara

Phys. Rev. B   71 ( 4 )   045129-1 - 10   2005.01

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Ultrafast four-wave mixing in strongly correlated electron systems Reviewed

Akira Takahashi, Hiroki Gomi, Masaki Aihara

Phys. Rev. B   69 ( 7 )   075116-1 - 7   2004.02

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Photogenerated states in a highly correlated electron system Reviewed

M. Aihara, A. Takahashi, H. Gomi

Int. J. Mod. Phys.   17   3370 - 3372   2003.08

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Dynamics of photoexcited states in strongly correlated electron systems Reviewed

Akira Takahashi, Hiroki Gomi, Masaki Aihara

Phys. Rev. Lett.   89 ( 20 )   206402-1 - 4   2002.11

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Photoinduced superconducting states in strongly correlated electron systems Reviewed

Akira Takahashi, Hiroki Gomi, Masaki Aihara

Phys. Rev. B   66 ( 11 )   115103-1 - 7   2002.09

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Photoexcited states of two-dimensional strongly correlated electron systems Reviewed

A. Takahashi, S. Yoshikawa, M. Aihara

Phys. Rev. B   65 ( 8 )   085103-1 - 9   2002.02

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Multi-photon excited states of two-dimensional strongly correlated electron systems Reviewed

A. Takahashi, H. Gomi, M. Aihara

J. Lumin.   94-95   499 - 502   2001.12

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Theory of the Luminescence Spectra of High-Density Electron-Hole Systems: Crossover from Excitonic Bose-Einstein Condensation to Electron-Hole BCS state Reviewed

T. J. Inagaki, M. Aihara, A. Takahashi

Solid State Commun.   115 ( 12 )   645 - 650   2000.08

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Photoexcitation and Relaxation Process in Polyacetylene Reviewed

A. Yamashiro, A. Takahashi

J. Phys. Soc. Jpn.   67 ( 8 )   2938 - 2947   1998.08

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Strongly-Correlated Electron Systems Excited by Intense Light - Search for a New Phase of Matter - Reviewed

A. Takahashi, M. Aihara

Excitonic Processes in Condensed Matter, The Electrochemical Society Proceedings Series   98-25   513 - 518   1998.06

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Effects of Quantum Fluctuations on the Nonlinear Optical Response of trans-Polyacetylene to the Static external Electric Field Reviewed

A. Takahashi

Phys. Rev. B   56 ( 7 )   3792 - 3799   1997.08

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Nonlinear Optical Response of trans-Polyacetylene to the Strong Static Electric Field Reviewed

A. Takahashi

Synth. Met.   85   1087 - 1088   1997.03

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Effects of Quantum Fluctuations of Electrons and Lattice in Doped Polyacetylene Reviewed

A. Takahashi

Phys. Rev. B   54 ( 11 )   7965 - 7971   1996.09

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Anharmonic Oscillator Representation of Nonlinear Optical Susceptibilities of a Charged Soliton, a Neutral Soliton, and a Polaron in Conjugated Polymers Reviewed

A. Takahashi, S. Mukamel

J. Chem. Phys.   103 ( 16 )   7144 - 7155   1995.10

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Significant Enhancement of Optical Nonlinearlity by Quantum Lattice Fluctuations in π-Conjugated Polymers Reviewed

A. Takahashi

Phys. Rev. B   51 ( 22 )   16479 - 16482   1995.06

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The Effects of Quantum Lattice Fluctuations on Nonlinear Optics of Polyacetylene Reviewed

A. Takahashi

Synth. Met.   71   1681 - 1682   1995.04

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Electronic Coherence and Nonlinear Susceptibilities of Conjugated Polyenes Reviewed

S. Mukamel, A. Takahashi, H. X. Wang, G. Chen

Science   266 ( 5183 )   250 - 254   1994.10

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Spectroscopic Investigation of the Nonlinear Response of Poly(4-BCMU) Films Reviewed

M. Cha, W. Torruellas, G. Stegeman, H. X. Wang, A. Takahashi, S. Mukamel

Chem. Phys. Lett.   228   73 - 78   1994.09

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Chemical Bonding and Off-Resonant Nonlinear Polarizabilities of Conjugated Organic Molecules Invited Reviewed

G. Chen, A. Takahashi, S. Mukamel

Proc. SPIE - Int. Soc. Opt. Eng.   2143   143 - 151   1994.06

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Soliton and Exciton Effects in Femtosecond Pump Probe Spectroscopy of Conjugated Polymers Reviewed

M. Hartmann, A. Takahashi, S. Mukamel

Mol. Cryst. Liq. Cryst.   256   531 - 536   1994.06

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Anharmonic Oscillator Modeling of Nonlinear Susceptibilities and Its Application to Conjugated Polymers Reviewed

A. Takahashi, S. Mukamel

J. Chem. Phys.   100 ( 3 )   2366 - 2384   1994.02

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Collective Charge Density Fluctuations and Nonlinear Optical Response of C60 Reviewed

A. Takahashi, H. X. Wang, S. Mukamel

Chem. Phys. Lett.   216   394 - 398   1993.12

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Nonlinear Spectroscopy of Polydiacetylene Invited Reviewed

W. Torruellas, M. Cha, B. Laurence, G. I. Stegeman, H. X. Wang, A. Takahashi, S. Mukamel

Proc. SPIE - Int. Soc. Opt. Eng.   2025   346 - 351   1993.06

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Quantum Lattice Fluctuations in the Exactly Half-filled and Nearly Half-filled Su-Schrieffer-Heeger Model Reviewed

A. Takahashi

Synth. Met.   57   4485 - 4492   1993.04

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Quantum Confinement and Nonlinear Optical Response of Conjugated Molecules Invited Reviewed

H. X. Wang, A. Takahashi, M. Hartmann, S. Mukamel

Proc. SPIE - Int. Soc. Opt. Eng.   1852   56 - 67   1993.01

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Quantum Lattice Fluctuations in the Exactly Half-filled and Nearly Half-filled Su-Schrieffer-Heeger Model Reviewed

A. Takahashi

Phys. Rev. B   46 ( 18 )   11550 - 11558   1992.11

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The Resonating Hartree-Fock Theory of a One-Dimensional Electronic System Reviewed

S. Yamamoto, A. Takahashi, H. Fukutome

Synth. Met.   49   239 - 243   1992.08

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The Resonating Hartree-Fock Theory of a One Dimensional Electronic System Reviewed

S. Yamamoto, A. Takahashi, H. Fukutome

Mol. Cryst. Liq. Cryst.   216   145 - 150   1992.06

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Superpolaron Model for Metallic Polyacetylene Reviewed

A. Takahashi, S. Yamamoto, H. Fukutome

J. Phys. Soc. Jpn.   61 ( 1 )   199 - 216   1992.01

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Resonating Hartree-Fock Theory of the One Dimensional Hubbard Model I. Quantum Fluctuations by SDW Solitons and Breathers Reviewed

S. Yamamoto, A. Takahashi, H. Fukutome

J. Phys. Soc. Jpn.   60 ( 10 )   3433 - 3448   1991.10

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The Resonating SDW Solitons and Breathers in the One-Dimensional Hubbard Model Reviewed

S. Yamamoto, A. Takahashi, H. Fukutome

Synth. Met.   43 ( 3 )   3705 - 3708   1991.06

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Exact periodic solutions in the continuum models of polyacetylene

Akira Takahashi

1989.03

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Exact Periodic Solutions in the Continuum Models of Polyacetylene Reviewed

A. Takahashi

Prog. Theor. Phys.   81 ( 3 )   610 - 632   1989.03

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Effects of Dopant Ions on Solitons in Polyacetylene Reviewed

A. Takahashi, H. Fukutome

Synth. Met.   28   D469 - D475   1989.02

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Exact Solutions for Some Periodic Systems in the Continuum Models of Polyacetylene Reviewed

A. Takahashi

Solid State Commun.   67 ( 2 )   173 - 177   1988.07

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A Mechanism of Charged Soliton Conduction in a Doped Polyacetylene Chain Reviewed

H. Fukutome, A. Takahashi

Prog. Theor. Phys.   77 ( 6 )   1376 - 1390   1987.06

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Degeneracy of Solitons and Polarons in Polyacetylene for Translation between Nearest Neighbour Sites Reviewed

A. Takahashi, H. Fukutome

Solid State Commun.   63 ( 4 )   279 - 283   1987.04

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Design of Conjugated Polymers with Polaronic Ferromagnetism Reviewed

H. Fukutome, A. Takahashi, M. Ozaki

Chem. Phys. Lett.   133 ( 1 )   34 - 38   1987.01

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On Electronic States and Bond Lengths of Truncated Icosahedral C60 Molecule Reviewed

M. Ozaki, A. Takahashi

Chem. Phys. Lett.   127 ( 3 )   242 - 244   1986.06

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Polyelectrolytic Theory of Doped Polyacetylene Reviewed

H. Fukutome, A. Takahashi

Synth. Met.   13   135 - 147   1986.01

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