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2008 Fiscal Year Final Research Report

Spin-dependent effective interaction and its application to quantum dots

Research Project

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Project/Area Number 17540265
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionSophia University

Principal Investigator

TAKAYANAGI Kazuo  Sophia University, 理工学部, 教授 (30183859)

Co-Investigator(Kenkyū-buntansha) SHIMIZU Kiyotaka  上智大学, 理工学部, 教授 (00143363)
YOSHIZAWA Kanako  上智大学, 理工学部, 研究員 (70439339)
Project Period (FY) 2005 – 2008
Keywords有効相互作用 / スピン相関 / 近距離相関 / 相転移
Research Abstract

応答関数に関しては、強磁場でスピンを制御した2次元電子系(量子ホール系)のスピン応答関数と、それが低密度側で示す不安定性の間の関係を明らかにした。その立場から、fillingfactor が2 の系に対して密度とゼーマンエネルギーで指定される平面上での磁気相図を完成した。有効相互作用に関しては、多重散乱の効果をスピンに依存する電子間有効相互作用として、使いやすいSkyrme 型のポテンシャルで表し、いくつかの応用により、その有用性を示した。

  • Research Products

    (18 results)

All 2009 2008 2007 2006 2005

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (8 results)

  • [Journal Article] Magnetic Phase diagram of nu=2 quantum Hall systems2009

    • Author(s)
      Kanako Yoshizawa and Kazuo Takayanagi
    • Journal Title

      Physical Review B79 125321

      Pages: 15

    • Peer Reviewed
  • [Journal Article] Spin instability and phase diagram of nu=2 quantum Hall systems2009

    • Author(s)
      Kanako Yoshizawa and Kazuo Takayanagi
    • Journal Title

      Journal of Physics: Conference Series, 150 042242

      Pages: 4

    • Peer Reviewed
  • [Journal Article] New general scheme for improving accuracy in implementing self-consistent iterative calculations: illustration in the STLS theory2009

    • Author(s)
      Kanako Yoshizawa and Ysutami Takada
    • Journal Title

      Journal of Physics: Condensed Matter, 21 064204

      Pages: 8

    • Peer Reviewed
  • [Journal Article] Lambda(1405) resonance in baryon-meson scattering with a bound state embedded in the continuum.2009

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C79 045204

      Pages: 1-12

    • Peer Reviewed
  • [Journal Article] Utilizing group property of Bogoliubov transformation2008

    • Author(s)
      Kazuo Takayanagi
    • Journal Title

      Nuclear Physics A808

      Pages: 17-26

    • Peer Reviewed
  • [Journal Article] Completeness relation in the R-matrix theory of scattering2008

    • Author(s)
      Kazuo Takayanagi
    • Journal Title

      Physical Review, A77 062714

      Pages: 6

    • Peer Reviewed
  • [Journal Article] Spin instability of integer quantum Hall systems2007

    • Author(s)
      Kanako Yoshizawa and Kazuo Takayanagi
    • Journal Title

      Physical Review B76 155329

      Pages: 9

    • Peer Reviewed
  • [Journal Article] Λ (1405) as a resonance in the baryon-meson scattering coupled to the q3 state in a quark model2007

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C76 035204

      Pages: 11

    • Peer Reviewed
  • [Journal Article] Pentaquark as a NK* Bound State with TJ = 0 3/22005

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Journal Title

      Physical Review C71 062202

      Pages: 1-5

    • Peer Reviewed
  • [Journal Article] Charge-density response function of two-dimensional electron systems in a magnetic field2005

    • Author(s)
      Kanako Yoshizawa and Kazuo Takayanagi
    • Journal Title

      Physical Review B71 125118

      Pages: 17

    • Peer Reviewed
  • [Presentation] Effective interaction in electron systems YITP workshop on development of nuclear structure models from the viewpoint of nuclear force2009

    • Author(s)
      Kazuo Takayanagi
    • Organizer
      Yukawa Institute for Theoretical Physics
    • Place of Presentation
      Kyoto
    • Year and Date
      20090520-22
  • [Presentation] Lambda(1405) in a baryon-meson scattering described from a quark-model viewpoint2008

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Organizer
      Proceedings of the Sendai International Symposium on Strangeness in Nuclear and Hadronic Systems
    • Place of Presentation
      Sendai
    • Year and Date
      20081215-18
  • [Presentation] Spin instability and phase diagram of nu=2 quantum Hall systems2008

    • Author(s)
      Kanako Yoshizawa and Kazuo Takayanagi
    • Organizer
      25^<th> International Conference on Low Temperature Physics
    • Place of Presentation
      Amsterdam
    • Year and Date
      2008-08-01
  • [Presentation] 整数量子ホール系における常磁性相及び強磁性相の不安定性2008

    • Author(s)
      吉澤香奈子、高柳和雄
    • Organizer
      日本物理学会第63 回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-03-01
  • [Presentation] Lambda(1405) as a resonance in the baryon-meson scattering coupled to the q3 state in a quark model2007

    • Author(s)
      Sachiko Takeuchi and Kiyotaka Shimizu
    • Organizer
      Proceedings of the 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon
    • Place of Presentation
      IKP, Juelich, Germany
    • Year and Date
      20070910-14
  • [Presentation] 量子ホール系におけるスピン偏極不安定性2007

    • Author(s)
      吉澤香奈子、高柳和雄
    • Organizer
      日本物理学会第62 回年次大会
    • Place of Presentation
      北大
    • Year and Date
      2007-09-01
  • [Presentation] 2 層ν=2 量子ホール系の相転移2007

    • Author(s)
      吉澤香奈子、高柳和雄
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      鹿児島大
    • Year and Date
      2007-03-01
  • [Presentation] 量子ホール系におけるスピン密度励起のソフト化と相転移2006

    • Author(s)
      吉澤香奈子、高柳和雄
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      奈良女子大
    • Year and Date
      2006-09-01

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

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