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2009 Fiscal Year Annual Research Report

密度汎関数アプローチによる全核種精密計算

Research Project

Project/Area Number 21340073
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

中務 孝  The Institute of Physical and Chemical Research, 中務原子核理論研究室, 准主任研究員 (40333786)

Co-Investigator(Kenkyū-buntansha) 矢花 一浩  筑波大学, 数理物質科学研究科, 教授 (70192789)
松尾 正之  新潟大学, 自然科学系, 教授 (70212214)
Keywords原子核構造 / 原子核反応 / 密度汎関数理論 / 線形応答関数 / 光核反応
Research Abstract

平成21年度は、研究計画の中で主に以下の2つの内容を実施した。
(1)有限振幅法による原子核応答関数の系統的計算に向けた並列計算プログラムの整備とプロダクトランの実施
(2)行列形式による準粒子乱雑位相近似計算の並列計算プログラム開発
(3)5次元集団ハミルトニアンの微視的構成と量子化による原子核大振幅集団運動の記述
(1)については、これまでに開発を進めてきた3次元座標空間表示によるSkyrme汎関数の線形応答計算の延長にあり、並列計算コードの整備と質量数80程度までの偶々核に対する計算を実行した。特に、電気双極子応答について調べており、光吸収断面積の計算核データについて一部ではあるが、結果を得ることができた。この理論的・数値計算的側面について論文を発表した。
また、(2)については、標準的な行列形式による準粒子乱雑位相近似(QRPA)計算であるが、これまでにクーロン相互作用とスピン・軌道相互作用を除く残留相互作用を自己無撞着に取り入れる計算コードの開発を行い、このプログラムの並列化を実施した。基底状態の変形は軸対称なものに制限されるが、原子核のほとんどがこの枠内で取り扱えると考えられる。このコードも座標空間表示であり、ドリップラインに近い弱束縛系まで扱える計算コードになっている。今後、並列コア数を1000以上に増加させた場合の並列化効率などを検査した上で、大規模並列計算を行い、計算核データ整備の第一歩とする予定である。
(3)では、P+Q模型という半現象論的なハミルトニアンによるものではあるが、断熱近似を用いた、調和近似を超えた微視的理論に基づく5次元集団ハミルトニアンの数値的構築に初めて成功した。今後、より現実的な汎関数に応用することで、大きな発展が期待される。

  • Research Products

    (29 results)

All 2010 2009

All Journal Article (14 results) (of which Peer Reviewed: 11 results) Presentation (15 results)

  • [Journal Article] Microscopic description of oblate-prolate shape mixing in proton-rich Se isotopes2009

    • Author(s)
      N.Hinohara, et al
    • Journal Title

      Phys.Rev.C 80

      Pages: 014305(11)

    • Peer Reviewed
  • [Journal Article] Self-consistent calculation of nuclear photoabsorption cross sections : Finite amplitude method with Skyrme functionals in the three-dimensional real space2009

    • Author(s)
      T.Inakura, et al
    • Journal Title

      Phys.Rev.C 80

      Pages: 044301(11)

    • Peer Reviewed
  • [Journal Article] Non-local mean field effect on nuclei near Z=64 sub-shell2009

    • Author(s)
      W.H.Long, et al
    • Journal Title

      Phys.Lett.B 680

      Pages: 428-431

    • Peer Reviewed
  • [Journal Article] Response functions in the continuum of deformed nuclei studied with the time-dependent density-functional calculations2009

    • Author(s)
      T.Inakura, et al
    • Journal Title

      Int.J.Mod.Phys.E 18

      Pages: 2088-2092

    • Peer Reviewed
  • [Journal Article] Systematic study of electric dipole excitations with fully self-consistent Skyrme HF plus RPA from light to medium-mass deformed nuclei2009

    • Author(s)
      T.Inakura, et al
    • Journal Title

      Eur.Phys.J.A 42

      Pages: 591-594

    • Peer Reviewed
  • [Journal Article] Oscillator strength distribution of C$_{60}$ in the time-dependent density functional theory2009

    • Author(s)
      Y.Kawashita, et al
    • Journal Title

      J.Mol.Str.THEOCHEM 914

      Pages: 130-135

    • Peer Reviewed
  • [Journal Article] Optimal pair density functional for description of nuclei with large neutron excess2009

    • Author(s)
      M.Yamagami, et al
    • Journal Title

      Phys.Rev.C 80

      Pages: 06430(10)

    • Peer Reviewed
  • [Journal Article] Finite amplitude method and systematic studies of photoresponse in deformed nuclei2009

    • Author(s)
      T.Nakatsukasa, et al
    • Journal Title

      AIP Conference Proceedings 1165

      Pages: 173-176

  • [Journal Article] Collective path and inertial mass of large-amplitude collective dynamics : Application to shape coexistence2009

    • Author(s)
      N.Hinohara, et al
    • Journal Title

      AIP Conference Proceedings 1175

      Pages: 49-56

  • [Journal Article] Continuum Hartree-Fock-Bogoliubov theory for weakly bound deformed nuclei using coordinate-space Green's function method2009

    • Author(s)
      H.Oba, M.Matsuo
    • Journal Title

      Phys.Rev.C 80

      Pages: 024301(14)

    • Peer Reviewed
  • [Journal Article] RPA calculations with Gaussian expansion method2009

    • Author(s)
      H.Nakada, et al
    • Journal Title

      Nucl.Phys.A 828

      Pages: 283-305

    • Peer Reviewed
  • [Journal Article] Coupled-channel Green's function approach to deformed continuum Hartree-Fock-Bogoliubov theory2009

    • Author(s)
      H.Oba, M.Matsuo
    • Journal Title

      AIP Conference Proceedings 1165

      Pages: 263-266

  • [Journal Article] Continuum coupling and pair correlation in weakly bound deformed nuclei2009

    • Author(s)
      H.Oba, M.Matsuo
    • Journal Title

      Int.J.Mod.Phys.E 18

      Pages: 2015-2019

    • Peer Reviewed
  • [Journal Article] First principle calculation for high harmonic generation in diamond2009

    • Author(s)
      T.Otobe, K.Yabana, J.-I.Iwata
    • Journal Title

      Journal of Computational and Theoretical Nanoscience 6

      Pages: 2545-2549

    • Peer Reviewed
  • [Presentation] 208Pbや132Snなどに現れる pygmy dipole resonance の性質について2010

    • Author(s)
      T.Inakura
    • Organizer
      日本物理学会 2010年年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      20100520-20100523
  • [Presentation] Systematic calculation of electric dipole strength with Skyrme-HF plus RPA2010

    • Author(s)
      T.Inakura, et al
    • Organizer
      JUSTIPEN-LACM workshop
    • Place of Presentation
      Oak Ridge, USA
    • Year and Date
      20100515-20100517
  • [Presentation] Systematic calculation of E1 strength with fully self consistent Skyrme-HF+RPA2010

    • Author(s)
      T.Inakura, et al
    • Organizer
      10th Internatioal Symposium on Origin of Matter and Evolution of the Galaxies(OMEG10)
    • Place of Presentation
      RCNP, Osaka, Japan
    • Year and Date
      20100508-20100510
  • [Presentation] Systematic calculation of electric dipole strength with Skyrme-HF plus RPA2010

    • Author(s)
      T.Inakura, et al
    • Organizer
      International Symposium on Forefronts of Researches in Exotic Nuclear Structures
    • Place of Presentation
      Tokamachi, Niigata, Japan
    • Year and Date
      20100501-20100504
  • [Presentation] Real-time calculation for RPA response and nonlinear dynamics2010

    • Author(s)
      K.Yabana
    • Organizer
      Multidisciplinary Workshop on Random Phase Approximation(Invited talk)
    • Place of Presentation
      Paris, France
    • Year and Date
      20100126-20100129
  • [Presentation] Global fitting of the pairing functional2009

    • Author(s)
      T.Nakatsukasa
    • Organizer
      RIKEN-TRIUMF Nuclear Theory Meeting
    • Place of Presentation
      Vancouver, BC, Canada
    • Year and Date
      20091215-20091216
  • [Presentation] Coupled-channel Green's function approach to deformed continuum Hartree-Fock-Bogoliubov theory2009

    • Author(s)
      M.Masuo
    • Organizer
      JUSTIPEN-EFES workshop on unstable nuclei
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20091207-20091209
  • [Presentation] Pair correlations and pair transfers in neutron-rich nuclei2009

    • Author(s)
      M.Matsuo
    • Organizer
      The 7th Japan-China Joint Nuclear Physics Symposium(Invited talk)
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      20091109-20091113
  • [Presentation] Systematic calculation of electric dipole strength with Skyrme-HF plus RPA2009

    • Author(s)
      T.Inakura, et al
    • Organizer
      7th Japan-China Joint Nuclear Physics Symposium
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      20091109-20091113
  • [Presentation] Photnuclear reactions studied with the time-dependent density-functional theory2009

    • Author(s)
      T.Nakatsukasa
    • Organizer
      Third Joint Meeting of the Nuclear Physics Divisions of APS and JPS Hawaii 2009(Invited talk)
    • Place of Presentation
      Waikoloa, HW, USA
    • Year and Date
      20091013-20091017
  • [Presentation] Microscopic analysis of large amplitude collective dynamics in triaxial nuclear shapes2009

    • Author(s)
      T.Nakatsukasa, et al
    • Organizer
      Third Joint Meeting of the Nuclear Physics Divisions of APS and JPS Hawaii 2009(HAW09)
    • Place of Presentation
      Waikoloa, HW, USA
    • Year and Date
      20091013-20091017
  • [Presentation] TDDFT simulation for ultrafast dynamics in molecules and dielectrics2009

    • Author(s)
      K.Yabana
    • Organizer
      CECAM-LighTnet workshop on computational challenges emerging from Next Generation Light Sources(Invited talk)
    • Place of Presentation
      DESY Hamburg, Germany
    • Year and Date
      20091013-20091015
  • [Presentation] Recent activities in RIKEN RI Beam Factory : experiments and theories2009

    • Author(s)
      T.Nakatsukasa
    • Organizer
      12th International Conference on Nuclear Reaction Mechanisms(Invited talk)
    • Place of Presentation
      Varenna, Italy
    • Year and Date
      20090615-20090619
  • [Presentation] Enhanced pair transfer as a probe to the strong surface pairing in n-rich nuclei2009

    • Author(s)
      M.Matsuo
    • Organizer
      International conference "Collective motions in nuclei under extreme conditions(COMEX3)
    • Place of Presentation
      Makinac Island, USA
    • Year and Date
      20090602-20090605
  • [Presentation] Finite amplitude method and systematic studies of photoresponse in deformed nuclei2009

    • Author(s)
      T.Nakatsukasa, et al
    • Organizer
      International Conference on Nuclear Structure and Dynamics
    • Place of Presentation
      Dubrovnik, Croatia
    • Year and Date
      20090504-20090508

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Published: 2011-06-16   Modified: 2016-04-21  

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