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Nonlinear and nonequilibrium states in strongly correlated systems studied by nonequilibrium dynamical mean field theory

Research Project

Project/Area Number 23740260
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionThe University of Tokyo

Principal Investigator

OKA Takashi  東京大学, 工学(系)研究科(研究院), 講師 (50421847)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords強相関系 / 非平衡現象 / 強相関電子系 / 非平衡物理 / 非平衡 / 統計力学 / レーザー物理 / 動的平均場理論 / 物性基礎論 / 光物性 / 国際研究者交流
Research Abstract

Strongly correlated electron system, e.g., Hi Tc cuprates, organic compounds, are considered as next generation materials for device applications. In this research, I studied their nonequilibrium dynamics induced by electric fields and lasers theoretically. In addition, I have studied the spin dynamics also generated in these materials in strong external fields. I have, with my collaborators, extended the dynamical mean field theory to nonequilibrium, in order to pursue this goal. The results have been described in 9 original papers (1 is a review article), and 1 Japanese article.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (31 results)

All 2014 2013 2012 2011 Other

All Journal Article (18 results) (of which Peer Reviewed: 13 results) Presentation (9 results) (of which Invited: 5 results) Remarks (4 results)

  • [Journal Article] Nonequilibrium dynamical mean-field theory and its applications2014

    • Author(s)
      H. Aoki, N. Tsuji, M. Eckstein, M. Kollar, T. Oka, and P. Werner
    • Volume
      (to appear in Review of Modern Physics)
    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Supersolid states in a spin system-phase diagram and collective excitations2013

    • Author(s)
      Y. Murakami, T. Oka, and H. Aoki
    • Journal Title

      Phys. Rev. B

      Volume: 88 Pages: 224404-224404

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Vacuum Instability in Electric Fields via AdS/CFT : Euler-Heisenberg Lagrangian and Planckian Thermalization2013

    • Author(s)
      K. Hashimoto, and T. Oka
    • Journal Title

      JHEP10

      Volume: 116

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superconductivity assisted by interlayer pair hopping in multilayered cuprates2013

    • Author(s)
      K. Nishiguchi, K. Kuroki, R. Arita, T. Oka, and H. Aoki
    • Journal Title

      Phys. Rev. B

      Volume: 88 Pages: 14509-14509

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superconductivity assisted by interlayer pair hopping in multilayered cuprates2013

    • Author(s)
      K. Nishiguchi, K. Kuroki, R. Arita, T. Oka and H. Aoki
    • Journal Title

      Phys. Rev. B

      Volume: 88 Issue: 1

    • DOI

      10.1103/physrevb.88.014509

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vacuum Instability in Electric Fields via AdS/CFT: Euler-Heisenberg Lagrangian and Planckian Thermalization2013

    • Author(s)
      Koji Hashimoto, Takashi Oka
    • Journal Title

      Journal of High Energy Physics

      Volume: 1310 Issue: 10 Pages: 116-116

    • DOI

      10.1007/jhep10(2013)116

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Supersolid states in a spin system: Phase diagram and collective excitations2013

    • Author(s)
      Y. Murakami, T. Oka, and H. Aoki
    • Journal Title

      Phys. Rev. B

      Volume: 88 Issue: 22

    • DOI

      10.1103/physrevb.88.224404

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nonlinear doublon production in a Mott insulator : Landau-Dykhne method applied to an integrable model2012

    • Author(s)
      T. Oka
    • Journal Title

      Phys. Rev. B

      Volume: 86

    • Related Report
      2013 Final Research Report
  • [Journal Article] Photo control of transport properties in a disordered wire : Average conductance, conductance statistics, and time-reversal symmetry2012

    • Author(s)
      T. Kitagawa, T. Oka, E. Demler
    • Journal Title

      Ann. Phys

      Volume: 327 Pages: 1868-1868

    • Related Report
      2013 Final Research Report
  • [Journal Article] Repulsion-to-attraction transition in correlated electron systems triggered by a monocycle pulse2012

    • Author(s)
      N. Tsuji, T. Oka, H. Aoki, and P. Werner
    • Journal Title

      Phys. Rev. B

      Volume: 85 Pages: 155124-155124

    • Related Report
      2013 Final Research Report
  • [Journal Article] Nonlinear doublon production in a Mott insulator: Landau-Dykhne method applied to an integrable model2012

    • Author(s)
      Takashi Oka
    • Journal Title

      Phys. Rev. B

      Volume: 86 Issue: 7

    • DOI

      10.1103/physrevb.86.075148

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Repulsion-to-attraction transition in correlated electron systems triggered by a monocycle pulse2012

    • Author(s)
      Naoto Tsuji, Takashi Oka, Hideo Aoki, Philipp Werner
    • Journal Title

      Phys.Rev.B

      Volume: 85 Issue: 15 Pages: 155124-155124

    • DOI

      10.1103/physrevb.85.155124

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photo control of transport properties in a disordered wire: Average conductance, conductance statistics, and time-reversal symmetry2012

    • Author(s)
      Takuya Kitagawa, Takashi Oka, Eugene Demler
    • Journal Title

      Annals of Physics

      Volume: 327 Issue: 7 Pages: 1868-1889

    • DOI

      10.1016/j.aop.2012.02.012

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Transport properties of non-equilibrium systems under the application of light : Photo-induced quantum Hall insulators without Landau levels2011

    • Author(s)
      T. Kitagawa, T. Oka, A. Brataas, L. Fu, and E. Demler
    • Journal Title

      Phys. Rev. B

      Volume: 84 Pages: 235108-235108

    • Related Report
      2013 Final Research Report
  • [Journal Article] Rapid Thermalization by Baryon Injection in Gauge/Gravity Duality2011

    • Author(s)
      K. Hashimoto, N. Iizuka, and T. Oka
    • Journal Title

      Phys. Rev. D

      Volume: 84 Pages: 66005-66005

    • Related Report
      2013 Final Research Report
  • [Journal Article] Dynamical Band Flipping in Fermionic Lattice Systems : An ac-Field-Driven Change of the Interaction from Repulsive to Attractive2011

    • Author(s)
      Naoto Tsuji, Takashi Oka, Philipp Werner, Hideo Aoki
    • Journal Title

      Phys.Rev.Lett.

      Volume: 106 Issue: 23 Pages: 236401-236401

    • DOI

      10.1103/physrevlett.106.236401

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rapid Thermalization by Baryon Injection in Gauge/Gravity Duality2011

    • Author(s)
      K.Hashimoto, N.Iizuka
    • Journal Title

      Physical Review

      Volume: D84 Issue: 6 Pages: 66005-66005

    • DOI

      10.1103/physrevd.84.066005

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Transport properties of nonequilibrium systems under the application of light : Photoinduced quantum Hall insulators without Landau levels2011

    • Author(s)
      Takuya Kitagawa, Takashi Oka, Arne Brataas, Liang Fu, Eugene Demler
    • Journal Title

      Phys.Rev.B

      Volume: 84 Issue: 23 Pages: 235108-235108

    • DOI

      10.1103/physrevb.84.235108

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      International workshop for Young Researchers on Topological Quantum Phenomena in Condensed Matter with Broken Symmetries 2013
    • Place of Presentation
      Okinawa
    • Related Report
      2013 Final Research Report
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      CDSAGENDA Conference on "Ultrafast Dynamics of Correlated Materials"
    • Place of Presentation
      Trieste Italy
    • Related Report
      2013 Final Research Report
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      7th ISSP international workshop and Symposium
    • Place of Presentation
      Chiba
    • Related Report
      2013 Final Research Report
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      QS2C Theory Forum : International Symposium on "Strongly Correlated Quantum Science"
    • Place of Presentation
      Tokyo
    • Related Report
      2013 Final Research Report
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      7th ISSP international workshop and Symposium
    • Place of Presentation
      東京大学物性研究所、千葉、日本
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      Takashi Oka
    • Organizer
      CDSAGENDA Conference on “Ultrafast Dynamics of Correlated Materials”
    • Place of Presentation
      SISSA, Trieste, Italy
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Floquet theory of photo-induced topological phase transitions2013

    • Author(s)
      T. Oka
    • Organizer
      International workshop for Young Researchers on Topological Quantum Phenomena in Condensed Matter with Broken Symmetries 2013
    • Place of Presentation
      ムーンオーシャン宜野湾 ホテル、沖縄、日本
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 非平衡理論 ― 物性を中心として2013

    • Author(s)
      岡隆史
    • Organizer
      日本物理学会
    • Place of Presentation
      広島大学、広島県
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 光誘起される 電子系の非平衡量子物理の可能性2013

    • Author(s)
      岡隆史
    • Organizer
      日本物理学会
    • Place of Presentation
      広島大学、広島県
    • Related Report
      2012 Research-status Report
    • Invited
  • [Remarks]

    • URL

      http://cms.phys.s.u-tokyo.ac.jp/~oka/

    • Related Report
      2013 Final Research Report
  • [Remarks] Takashi Oka's web page

    • URL

      http://cms.phys.s.u-tokyo.ac.jp/~oka/

    • Related Report
      2013 Annual Research Report
  • [Remarks] Google scholar (Takashi Oka)

    • URL

      http://scholar.google.co.jp/citations?user=r42Pk1YAAAAJ

    • Related Report
      2013 Annual Research Report
  • [Remarks] Takashi Oka's webpage

    • URL

      http://cms.phys.s.u-tokyo.ac.jp/~oka/

    • Related Report
      2012 Research-status Report

URL: 

Published: 2011-08-05   Modified: 2020-05-15  

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