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2008 Fiscal Year Final Research Report

Solitons and topological defects in multicomponent Bose-Einstein condensates

Research Project

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Project/Area Number 18740213
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionKinki University (2008)
Ishikawa National College of Technology (2006-2007)

Principal Investigator

KASAMATSU Kenichi  Kinki University, 理工学部理学科, 講師 (70413763)

Project Period (FY) 2006 – 2008
Keywordsボースアインシュタイン凝縮 / 超流動 / 冷却原子 / 量子渦 / パターン形成
Research Abstract

本研究ではナノケルビンの超低温まで冷却された中性原子気体のボース・アインシュタイン凝縮体(以下BECと略す)で起こる超流動現象と原子間相互作用の効果によって生じる非線形現象に関しての理論的研究を行った.2成分のBECの原子間相互作用によって起こる相分離の不安定性による種々のパターン形成の非線形ダイナミクスを明らかにした.またBECに存在し,超流動性に深く関与する特異な渦の構造を明らかにした.

  • Research Products

    (20 results)

All 2009 2008 2007 2006 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (9 results) Remarks (1 results)

  • [Journal Article] Uniformly frustrated bosonic Josephson junction array2009

    • Author(s)
      K. Kasamatsu
    • Journal Title

      Physical Review A 79

      Pages: 021604(1-4)

    • Peer Reviewed
  • [Journal Article] Vortex sheet in rotating two-component Bose-Einstein condensates2009

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Physical Review A 79

      Pages: 023606(1-7)

    • Peer Reviewed
  • [Journal Article] Spontaneous radiation and amplification of Kelvin waves on quantized vortices in Bose-Einstein condensates2009

    • Author(s)
      H. Takeuchi, K. Kasamatsu, and M. Tsubota
    • Journal Title

      Physical Review A 79

      Pages: 033619(1-5)

    • Peer Reviewed
  • [Journal Article] Uniformly frustrated Josephson junction array in trapped Bose-Einstein condensates2009

    • Author(s)
      K. Kasamatsu
    • Journal Title

      a special issue of Journal of Physics Condensed Matter (in press)

    • Peer Reviewed
  • [Journal Article] Vortex Lattices in Rotating Bose-Einstein Condensate in an Optical Lattice : Analogy to Uniformly Frustrated Josephson Junction Arrays2008

    • Author(s)
      K. Kasamatsu
    • Journal Title

      Journal of Low Temperature Physics 150

      Pages: 593-598

    • Peer Reviewed
  • [Journal Article] Quantized vortices in atomic Bose-Einstein condensates2008

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Progress in Low Temperature Physics 16

      Pages: 349-401

    • Peer Reviewed
  • [Journal Article] Dynamic Properties of Vortices in a Bose-Einstein Condensate in a Rotating Lattice2007

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Journal of Low Temperature Physics 148

      Pages: 357-362

    • Peer Reviewed
  • [Journal Article] Static and Dynamic Properties of Multicomponent Bose-Einstein Condensates of Ytterbium Atoms2007

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Journal of Low Temperature Physics 150

      Pages: 599-604

    • Peer Reviewed
  • [Journal Article] Modulation instability and solitary-wave formation in two-component Bose-Einstein condensates2006

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Physical Review A 74

      Pages: 013617(1)

    • Peer Reviewed
  • [Journal Article] Dynamical Vortex Phases in a Bose-Einstein Condensate Driven by a Rotating Optical Lattice2006

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Journal Title

      Physical Review Letters 97

      Pages: 240404(1-4)

    • Peer Reviewed
  • [Presentation] 原子気体BECで実現する一様なフラストレーションをもったジョセフソン接合列2008

    • Author(s)
      笠松健一
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      20080920-23
  • [Presentation] 回転2成分ボース凝縮体における渦シート構造2008

    • Author(s)
      笠松健一, 坪田誠
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      20080920-23
  • [Presentation] Uniformly frustrated Josephson junction array in trapped Bose-Einstein condensates2008

    • Author(s)
      K. Kasamatsu
    • Organizer
      25th International Conference on Low Temperature Physics
    • Place of Presentation
      Leiden, Amsterdam
    • Year and Date
      20080806-13
  • [Presentation] Rotating Bose-Einstein condensates in an optical lattice : Analogy to uniformly frustrated Josephson Junction arrays2007

    • Author(s)
      K. Kasamatsu
    • Organizer
      BOSE-EINSTEIN CONDENSATION 2007-Frontiers in Quantum Gases
    • Place of Presentation
      Sant Feliu de Guixols, Spain
    • Year and Date
      20070915-20
  • [Presentation] Static and Dynamic Properties of Multicomponent Bose-Einstein Condensates of Ytterbium Atoms2007

    • Author(s)
      K. Kasamatsu, M. Tsubota
    • Organizer
      International Symposium on Quantum Fluids and Solids 2007
    • Place of Presentation
      Kazan State Univ
    • Year and Date
      20070901-06
  • [Presentation] Vortex Lattices in Rotating Bose-Einstein Condensate in an Optical Lattice: Analogy to Uniformly Frustrated Josephson Junction Arrays2007

    • Author(s)
      K. Kasamatsu
    • Organizer
      International Symposium on Quantum Fluids and Solids 2007
    • Place of Presentation
      Kazan State Univ
    • Year and Date
      20070801-06
  • [Presentation] 回転光格子中のボース凝縮体における動的な量子渦相2007

    • Author(s)
      笠松健一,坪田誠
    • Organizer
      日本物理学会2007年春季大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      20070318-21
  • [Presentation] Vortex dynamics in Bose-Einstein condensates driven by a rotating optical lattice2006

    • Author(s)
      Kenichi Kasamatsu, M. Tsubota
    • Organizer
      International Conference on Quantum Mechanics and Chaos
    • Place of Presentation
      Osaka City Univ
    • Year and Date
      20060919-21
  • [Presentation] Dynamical Properties of Vortices in a Bose-Einstein Condensate in a Rotating Lattice2006

    • Author(s)
      Kenichi Kasamatsu, M. Tsubota
    • Organizer
      International Symposium on Quantum Fluids and Solids 2006
    • Place of Presentation
      Univ. of Kyoto
    • Year and Date
      20060801-06
  • [Remarks]

    • URL

      http://qube.phys.kindai.ac.jp/users/kenichi/index.html

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Published: 2010-06-10   Modified: 2016-04-21  

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