• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2006 Fiscal Year Final Research Report Summary

Study of quasi-conserved quantities in atomic BEC and dilute quantum gases

Research Project

Project/Area Number 15540381
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 原子・分子・量子エレクトロニクス・プラズマ
Research InstitutionThe University of Electro- Communications

Principal Investigator

WATANABE Shinichi  The University of Electro-Communications, Faculty of Electro- Communications, Professor, 電気通信学部, 教授 (60210902)

Co-Investigator(Kenkyū-buntansha) OHTSUKI Kazumasa  The University of Electro-Communications, Faculty of Electro- Communications, Assistant Professor, 電気通信学部, 助手 (80221828)
MORISHITA Toru  The University of Electro-Communications, Faculty of Electro- Communications, Assistant Professor (20313405)
Project Period (FY) 2003 – 2006
KeywordsBEC / Atto second laser and atoms dilute gas / Low temperature ion mobility in a dilute gas
Research Abstract

We studied adiabaticity and nonlinear dynamics in the context of the manipulation and control of the Bose-Einstein condensate (BEC) made of an atomic gas. We conducted a pilot study of the mechanism for the unanticipated creation of quantum vorticies in an experiment pertaining to the construction of a beam-splitter in a BEC-interferometer. Since the numerical techniques and the computer codes required for the analysis of BEC have much in common with those for the ultra-short laser pulses and their application to atomic physics, we observed a new development by applying the techniques to the ionization of atoms in ultra-intense laser fields and to the high-harmonics generation.
With a view to the representation of two-body interactions, we employed a computation scheme based on theoretical chemistry, and evaluated the mobility of an ion in a low-temperature gas of helium, thereby carrying out a dynamical analysis of the mobility and comparing it with experimental results. Quite unexpectedly, we pinned down the cause of the hitherto unsolved polarization-limit problem.
In addition to such discoveries, there emerged new challenges. For instance, the transformation of an atomic pair into a molecule at ultra-low temperatures constitutes a nonlinear STIRAP problem, which is an important issue under the present theme and is all the more applicable to related problems because of the universal mathematical nature of the nonlinear STIRAP problem. We expect more challenges will appear in relation to the adiabaticity and nonlinear dynamics in many-body physics at low temperatures. A new experimental development is equally likely in the field of ultra-short laser pulses and their interactions with atoms. We look forward to contributing to further progress.

  • Research Products

    (26 results)

All 2007 2006 2005 2004

All Journal Article (26 results)

  • [Journal Article] Attosecond Light Pulses for Probing Two-Electron Dynamics of Helium in the Time Domain2007

    • Author(s)
      Toru Morishita, Shinichi Watanabe, C. D. Lin
    • Journal Title

      Physical Review Letters 98

      Pages: 083003(4)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Time-dependent hyperspherical studies for a two-dimensional attractive Bose-Einstein condensate2007

    • Author(s)
      Chien-Nan Liu, Toru Morishita, Shinichi Watanabe
    • Journal Title

      Physical Review A 75

      Pages: 023604(8)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Two-dimensional electron momentum spectra of argon ionized by short intense lasers : Comparison of theory with experiment2007

    • Author(s)
      Toru Morishita, Zhangjin Chen, Shinichi Watanabe, C. D. Lin
    • Journal Title

      Physical Review A 75

      Pages: 023407(7)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 「研究成果報告書概要(欧文)」より2007

    • Author(s)
      Toru Morishita Shinichi Watanabe, C.D.Lin
    • Journal Title

      Phys.Rev.Lett 98, 083003

      Pages: (4)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2007

    • Author(s)
      Chien-Nan LiuToru Morishita, Shinichi Watanabe
    • Journal Title

      Phys.Rev A 75, 023604

      Pages: (8)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2007

    • Author(s)
      Toru Morishita, Zhangjin Chen, Shinichi Watanabe, C.D.Lin
    • Journal Title

      Phys.Rev.A 75, 023407

      Pages: (7)

  • [Journal Article] Analysis of two-dimensional photoelectron momentum spectra and the effect of the long-range Coulomb potential in single ionization of atoms by intense lasers2006

    • Author(s)
      Z.Chen, T.Morishita, A.-T.Le, M.Wickenhauser, X.M.Tong, C.D.Lin
    • Journal Title

      Physical Review A 74

      Pages: 053405(11)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Reexamination of dynamical stabilization of matter-wave solitons2006

    • Author(s)
      Alexander Itin, Toru Morishita, Shinichi Watanabe
    • Journal Title

      Physical Review A 74

      Pages: 033613(12)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Vortex creation during magnetic trap manipulations of spinor Bose-Einstein condensates2006

    • Author(s)
      A.P.Itin, T.Morishita, M.Satoh, O.I.Tolstikhin, S.Watanabe
    • Journal Title

      Physical Review A 73

      Pages: 063615(7)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Direct Experimental Visualization of Atomic and Electron Dynamics with Attosecond Pulses2006

    • Author(s)
      C.D.Lin, X.M.Tong, T.Morishita
    • Journal Title

      Journal of Physics B 39

      Pages: S419-S426

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 「研究成果報告書概要(欧文)」より2006

    • Author(s)
      Z.Chen, T.Morishita, A.-T.Le, M.Wickenhauser, X.M.Tong, C.D.Lin
    • Journal Title

      Phys.Rev.A 74, 053405

      Pages: (11)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2006

    • Author(s)
      Alexander Itin, Toru Morishita, Shinichi Watanabe
    • Journal Title

      Phys.Rev.A 74,033613

      Pages: (12)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2006

    • Author(s)
      A.P.Itin, T.Morishita, M.Satoh, O.I.Tolstikhin, S.Watanabe
    • Journal Title

      Phys.Rev.A 73, 063615

      Pages: (7)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2006

    • Author(s)
      C.D.Lin, X.M.Tong, T.Morishita
    • Journal Title

      J.Phys.B 39

      Pages: S419-S426

  • [Journal Article] Signature of chaos in high-lying doubly excited states of the helium atom2005

    • Author(s)
      A.-T.Le, T.Morishita, X.-M.Tong, C.D.Lin
    • Journal Title

      Physical Review A 72

      Pages: 032511(14)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Gyroscopic effects in interference of matter waves2005

    • Author(s)
      Oleg I.Tolstikhin, Toru Morishita, Shinichi Watanabe
    • Journal Title

      Physical Review A 72

      Pages: 051603(4)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Hyperspherical analysis of radial correlations in four-electron atoms2005

    • Author(s)
      Toru Morishita, C. D. Lin
    • Journal Title

      Physical Review A 71

      Pages: 012504(9)|

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Anomalous Decline of Molecular Ion Mobility in Cooled Helium Gas2005

    • Author(s)
      K.Ohtsuki, M.Hananoe, M.Matsuzawa
    • Journal Title

      Physical Review Letters 95

      Pages: 213201(4)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Investigation of triply excited states of Li-like ions in fast ion-atom collisions by zero-degree Auger projectile electron spectroscopy2005

    • Author(s)
      T.J.M.Zouros, E.P.Benis, M.Zamkov, C.D.Lin, T.G.Lee, P.Richard, T.W.Gorczyca, T.Morishita
    • Journal Title

      Nucl. Instrum. Methods B 233

      Pages: 161-171

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      A.-T.Le, T.Morishita, X.-M.Tong, C.D.Lin
    • Journal Title

      Phys.Rev.A 72, 032511

      Pages: (14)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      Oleg I.Tolstikhin, Toru Morishita, Shinichi Watanabe
    • Journal Title

      Phys.Rev.A 72, 051603

      Pages: (4)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      Toru Morishita, C.D.Lin
    • Journal Title

      Phys.Rev.A 71, 012504

      Pages: (9)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      K.Ohtsuki, M.Hananoe, M.Matsuzawa
    • Journal Title

      Phys.Rev.Lett. 95 213201

      Pages: (4)

  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      T.J.M.Zouros, E.P.Benis, M.Zamkov, C.D.Lin, T.G Lee, P.Richard, T.W.Gorczyca, T.Morishita
    • Journal Title

      Nucl.Instrum.Methods B 233

      Pages: 161-171

  • [Journal Article] Aspects of hyperspherical adiabaticity in an atomic-gas Bose-Einstein condensate2004

    • Author(s)
      Daisuke Kushibe, Masaki Mutou, Toru Morishita, Shinichi Watanabe, Michio Matsuzawa
    • Journal Title

      Physical Review A 70

      Pages: 063617(11)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 「研究成果報告書概要(欧文)」より2004

    • Author(s)
      Daisuke Kushibe, Masaki Mutou, Toru Morishita, Shinichi Watanabe, Michio Matsuzawa
    • Journal Title

      Phys.Rev.A 70, 063617

      Pages: (11)

URL: 

Published: 2008-05-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi