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KUWAHARA Yukiro  桑原 幸朗

ORCIDConnect your ORCID iD *help
Researcher Number 00707812
Other IDs
Affiliation (based on the past Project Information) *help 2015: 早稲田大学, 理工学術院, 助手
Review Section/Research Field
Except Principal Investigator
Mathematical physics/Fundamental condensed matter physics
Keywords
Except Principal Investigator
アルファクラスター模型 / 南部-Goldstoneモード / アルファクラスターモデル / Thermo Field Dynamics / ゼロモード / 自発的対称性の破れ / 冷却原子系 / 場の量子論 / 量子輸送方程式
  • Research Projects

    (1 results)
  • Research Products

    (20 results)
  • Co-Researchers

    (4 People)
  •  Quantum transport equation snd its application to ultracold atomic system

    • Principal Investigator
      YAMANAKA Yoshiya
    • Project Period (FY)
      2013 – 2015
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Waseda University

All 2016 2015 2014 2013 Other

All Journal Article Presentation

  • [Journal Article] Nonequilibrium Thermo Field Dynamics for Thermal Relaxation Process of Confined Cold Atomic Gas2014

    • Author(s)
      Y. Nakamura, Y. Kuwahara and Y. Yamanaka
    • Journal Title

      JPS Conf. Proc.

      Volume: 1

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Journal Article] Numerical Analysis of Quantum Transport Equation for Bose Gas in One Dimensional Optical Lattice2014

    • Author(s)
      Y. Kuwahara, Y. Nakamura, and Y. Yamanaka
    • Journal Title

      JPS Conf. Proc.

      Volume: 1

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Journal Article] From classical mechanics with doubled degrees of freedom to quantum field theory for nonconservative systems2013

    • Author(s)
      Y. Kuwahara, Y. Nakamura and Y. Yamanaka
    • Journal Title

      Phys. Lett. A

      Volume: 377 Issue: 43 Pages: 3102-3105

    • DOI

      10.1016/j.physleta.2013.10.001

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] The thermal vacuum for non-equilibrium steady state2016

    • Author(s)
      Ryosuke Imai, Yukiro Kuwahara, Yusuke Nakamura, and Yoshiya Yamanaka
    • Organizer
      APS March Meeting 2016
    • Place of Presentation
      Baltimore Convention Center, USA
    • Year and Date
      2016-03-14
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 冷却原子系におけるThermo Field Dynamics形式の線形応答を用いた準粒子の寿命の解析2015

    • Author(s)
      對馬護人,中村祐介,桑原幸朗,今井良輔,山中由也
    • Organizer
      日本物理学会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 非平衡 Thermo Field Dynamics に基づいた非平衡定常状態の解析2015

    • Author(s)
      今井 良輔, 中村 祐介, 桑原 幸朗, 山中 由也
    • Organizer
      基礎物理学研究所 研究会「熱場の量子論とその応用」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2015-09-01
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Nonequilibrium Thermo Field Dynamics for Nonequilibrium Steady States2015

    • Author(s)
      Ryosuke Imai, Yusuke Nakamura, Yukiro Kuwahara, and Yoshiya Yamanaka
    • Organizer
      Yukawa International Seminar 2015 (YKIS2015): New Frontiers in Non-equilibrium Statistical Physics 2015
    • Place of Presentation
      Yukawa Institute for Theoretical Physics (YITP)、Kyoto Univ.
    • Year and Date
      2015-08-18
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 2成分冷却フェルミ気体における非平衡過程に対する量子輸送方程式の解析2014

    • Author(s)
      今井良輔, 中村祐介,桑原幸朗, 山中由也
    • Organizer
      日本物理学会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-09-07
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 光学格子中の冷却Bose原子気体系に対するMarkov型量子輸送方程式による緩和過程の解析2014

    • Author(s)
      桑原幸朗,今井良輔,中村祐介,對馬護人,山中由也
    • Organizer
      理研シンポジウム・iTHES研究会「熱場の量子論とその応用」
    • Place of Presentation
      埼玉 理化学研究所
    • Year and Date
      2014-09-04
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Thermo Field Dynamicsに基づいた冷却原子系における準粒子の寿命と量子輸送方程式2014

    • Author(s)
      對馬護人,中村祐介, 桑原幸朗,今井良輔,山中由也
    • Organizer
      基礎物理学研究所研究会「量子多体系研究の新しい潮流 ― テンソルネットワーク・繰り込み群・エンタングルメント ―」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2014-12-16
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Numerical analysis of quantum transport equation derived from nonequilibrium Thermo Field Dynamics in Markovian approximation2014

    • Author(s)
      Y. Kuwahara, Y. Nakamura, Y. Yamanaka
    • Organizer
      24th International Conference on Atomic Physics
    • Place of Presentation
      Washington, D. C., USA
    • Year and Date
      2014-08-07
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 非平衡Thermo Field Dynamics に基づいた冷却フェルミ気体系における非平衡過程の解析2014

    • Author(s)
      今井良輔,中村祐介,桑原幸朗,山中由也
    • Organizer
      理研シンポジウム・iTHES研究会「熱場の量子論とその応用」
    • Place of Presentation
      埼玉 理化学研究所
    • Year and Date
      2014-09-04
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Numerical Analysis of Fermion Transport Based on Nonequilibrium Thermo Field Dynamics2014

    • Author(s)
      R. Imai, Y. Nakamura, Y. Kuwahara, Y. Yamanaka
    • Organizer
      24th International Conference on Atomic Physics
    • Place of Presentation
      Washington, D. C., USA
    • Year and Date
      2014-08-07
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Quantum transport equation for cold atomic gas systems from nonequilibrium Thermo Field Dynamics2014

    • Author(s)
      Y. Kuwahara, Y. Nakamura, R. Imai, M. Tushima, Y. Yamanaka
    • Organizer
      Yukawa International Seminar (YKIS) 2014: “Nonequilibrium Phenomena in Novel Quantum States”
    • Place of Presentation
      Kyoto Univ.
    • Year and Date
      2014-12-04
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 自由度二重化の古典Hamilton原理から非平衡Thermo Field Dynamicsの導出

    • Author(s)
      桑原幸朗, 中村祐介, 山中由也
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Numerical analysis of quantum transport equation for Bose gas in one dimensional optical lattice

    • Author(s)
      Yukiro Kuwahara, Yusuke Nakamura, and Yoshiya Yamanaka
    • Organizer
      The 12th Asia Pacific Physics Conference
    • Place of Presentation
      Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] Nonequilibrium Thermo Field Dynamics for thermal relaxation process of confined cold atomic gas

    • Author(s)
      Yusuke Nakamura, Yukiro Kuwahara, and Yoshiya Yamanaka
    • Organizer
      The 12th Asia Pacific Physics Conference
    • Place of Presentation
      Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 熱的状況下の自由度二重化

    • Author(s)
      山中由也, 中村祐介, 桑原幸朗
    • Organizer
      基礎物理学研究所「熱場の量子論とその応用」
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 一次元光学格子中の冷却気体Bose-Einstein凝縮系における量子輸送方程式による数値シミュレーション

    • Author(s)
      桑原幸朗, 中村祐介, 山中由也
    • Organizer
      基礎物理学研究所「熱場の量子論とその応用」
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-25400410
  • [Presentation] 2重井戸型ポテンシャルに捕捉された冷却原子気体の非平衡初期分布緩和過程に対する非平衡Thermo Field Dynamics

    • Author(s)
      中村祐介, 桑原幸朗, 山中由也
    • Organizer
      基礎物理学研究所「熱場の量子論とその応用」
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-25400410
  • 1.  YAMANAKA Yoshiya (10174757)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 20 results
  • 2.  NAKAMAURA Yuusuke (40547080)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 10 results
  • 3.  INOUE Motoyoshi (60609163)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 4.  TAKAHASHI Junichi (60732211)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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