Toward effective description of nonequilibrium phenomena

• Project/Area Number: 18740240
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Gakushuin University (2008); The University of Tokyo (2006-2007)
• Principal Investigator: KOMATSU Teruhisa Gakushuin University, 理学部・物理学科, 講師 (70348499)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,800,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000); Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: 非平衡 / 非線形物理学 / 定常状態 / 熱力学 / 非平衡定常状態 / 統計力学 / 過剰エントロピー生成 / 線形応答理論 / 定常分布 / 軌道情報 / 有効記述 / 分子機械

Research Abstract

熱が流れるといった典型的非平衡現象についての研究を行い、物理的基礎に関わる一連の成果を得た。具体的には、熱ラチェットモデルにおける熱輸送機構の単純な猫像、分子を分別するくらい小さいスケールでの一般的な統計的性質、分子集団という大きいスケールで大事になる物理量の候補を与えた。

Research Products

• [Journal Article] Representation of Nonequilibrium Steady States in Large Mechanical Systems (2009)
  • Author(s): Teruhisa S. Komatsu, Naoko Nakagawa, Shin-Ichi Sasa, and Hal Tasaki
  • Journal Title: J. Stat. Phys. 134 Pages: 401-423
  • Peer Reviewed
• [Journal Article] Representation of Nonequilibrium Steady States in Large Mechanical Systems (2009)
  • Author(s): 小松輝久
  • Journal Title: J. Stat. Phys 134 Pages: 401-423
  • Peer Reviewed
• [Journal Article] Expression for the Stationary Distribution in Nonequilibrium Steady States (2008)
  • Author(s): Teruhisa S. Komatsu and Naoko Nakagawa
  • Journal Title: Phys. Rev. Lett. 100
  • Peer Reviewed
• [Journal Article] Steady-State Thermodynamics for Heat Conduction: Microscopic Derivation (2008)
  • Author(s): Teruhisa S. Komatsu, Naoko Nakagawa, Shin-ichi Sasa, and Hal Tasaki
  • Journal Title: Phys. Rev. Lett 100
  • Peer Reviewed
• [Journal Article] Steady-State Thermodynamics for Heat Conduction : Microscopic Derivation (2008)
  • Author(s): 小松輝久
  • Journal Title: Phys. Rev. Lett 100
  • Peer Reviewed
• [Journal Article] Expression for the Stationary Distribution in Nonequilibrium Steady States (2008)
  • Author(s): Teruhisa S. Komatsu
  • Journal Title: Physical Review Letters 100
  • Peer Reviewed
• [Journal Article] A heat pump at a molecular scale controlled by a mechanical force (2006)
  • Author(s): Naoko Nakagawa and Teruhisa S. Komatsu
  • Journal Title: Europhysics Letters 75 Pages: 22-28
  • Peer Reviewed
• [Journal Article] Hidden heat transfer in equilibrium states implies directed motion in nonequilibrium states (2006)
  • Author(s): Teruhisa S. Komatsu and Naoko Nakagawa
  • Journal Title: Phys. Rev. E 73
  • Peer Reviewed
• [Journal Article] A heat pump at a molecular scale controlled by a mechanical force (2006)
  • Author(s): Naoko Nakagawa
  • Journal Title: Europhysics Letters 75・1 Pages: 22-22
• [Journal Article] Hidden heat transfer in equilibrium states implies directed motion in nonequilibrium states (2006)
  • Author(s): Teruhisa S.Komatsu
  • Journal Title: Physical Review E 73
• [Presentation] 非平衡定常状態における定常分布から熱力学表現へ (2008)
  • Author(s): 小松輝久
  • Organizer: 日本物理学会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] 非平衡定常状態の測度と過剰熱流2 (2008)
  • Author(s): 小松輝久、中川尚子、佐々真一、田崎晴明
  • Organizer: 日本物理学会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] 非平衡定常状態の測度と過剰熱流 (2007)
  • Author(s): 小松輝久、中川尚子
  • Organizer: 日本物理学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] Nonequilibrium steady states maintained by multiple heat baths (2007)
  • Author(s): T. S. Komatsu, N. Nakagawa
  • Organizer: workshop "kT log2 Fluctuation Theorems and the Physics of Information"
  • Place of Presentation: Segovia, Spain
• [Presentation] 化学機関における方向性運動とエネルギー流 (2006)
  • Author(s): 小松輝久,中川尚子
  • Organizer: 日本物理学会
  • Place of Presentation: 千葉大学
  • Year and Date: 2006-09-25
• [Presentation] Hidden heat transfer in equilibrium states implies directed motion in nonequilibrium states (2006)
  • Author(s): T. S. Komatsu, N. Nakagawa
  • Organizer: workshop Physics of Molecular Machines
  • Place of Presentation: Les Houches, France
• [Presentation] A working mechanism of molecular heat engines and heat pumps (2006)
  • Author(s): T. S. Komatsu, N. Nakagawa
  • Organizer: workshop Finite Time Thermodynamics
  • Place of Presentation: UCSD, San Diego, USA