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2010 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  独立行政法人理化学研究所, 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22年度は、研究計画の中で主に以下の4つの内容で大きな前進を得ることができた。
(1)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による重い原子核の光応答
(2)正準座標表示による時間依存Hartree-Fock-Bogoliubov理論の定式化とプログラム開発
(3)有限振幅法の超流動原子核への応用(準粒子乱雑位相近似)
まず、(1)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、昨年度開発した並列プログラムを用いて希土類核の形状相転移核における光吸収断面積計算を、理研のRICC512コアの並列計算で実施した。実験データとの比較から、ピーク位置およびその幅のアイソトープ依存性に関して非常によい一致を得た。将来的には、京計算機におけるアプリとしての有力候補と考えており、1万コア程度の並列度におけるパフォーマンスを今後調べていきたい。
(2)では、莫大な計算量がネックとなって現実的な計算が行われてこなかった時間依存
Hartree-Fock-Bogoliubov理論を正準基底を用いて定式化することを試みた。基底状態に対するBCS近似に相当する近似を時間依存正準基底について導入することで、この計算量を大幅に減らすことができることを示した。この近似の正当性を確かめるため、線形応答計算プログラムを開発し、この近似を導入しないフルの線形応答計算と比較し、良い一致を見た。この理論の開発により、今後、核分裂などの大振幅集団運動への応用が期待される。また、この成果はフィジカル・レビュー誌のハイライトに選ばれ、理化学研究所においてもプレス発表した。
(3)は、最近2年ほどかけて開発してきたプログラムであるが、ようやく完成した。原子核の基底状態の形状としては球対称性を仮定しているが、完全自己無撞着なQRPAコードとなっている。現在、これについて論文を準備中である。

  • Research Products

    (57 results)

All 2011 2010 2009

All Journal Article (20 results) (of which Peer Reviewed: 11 results) Presentation (37 results)

  • [Journal Article] Bridging the nuclear structure gap between stable and super heavy nuclei2010

    • Author(s)
      D.Seweryniak, et al.
    • Journal Title

      Nucl.Phys.A

      Volume: 834 Pages: 357c-361c

    • Peer Reviewed
  • [Journal Article] N-body nuclear forces at short distances in holographic QCD2010

    • Author(s)
      K.Hashimoto, et al.
    • Journal Title

      Phys.Rev.D

      Volume: 81 Pages: 106003(5)

    • Peer Reviewed
  • [Journal Article] A model analysis of triaxial deformation dynamics in oblate-prolate shape coexistence phenomena2010

    • Author(s)
      K.Sato, et al.
    • Journal Title

      Prog.Theor.Phys.

      Volume: 123 Pages: 129-155

    • Peer Reviewed
  • [Journal Article] Open problems in microscopic theory of large-amplitude collective motion2010

    • Author(s)
      K.Matsuyanagi, et al.
    • Journal Title

      J.Phys.G

      Volume: 37 Pages: 064018(16)

    • Peer Reviewed
  • [Journal Article] Open problems in nuclear structure near drip lines2010

    • Author(s)
      M.Matsuo, T.Nakatsukasa
    • Journal Title

      J.Phys.G

      Volume: 37 Pages: 064017(10)

    • Peer Reviewed
  • [Journal Article] Microscopic approach to adiabatic large-amplitude quadrupole collective dynamics in Se isotopes2010

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

      Mod.Phys.Lett.

      Volume: 25 Pages: 1796-1799

  • [Journal Article] Pairing correlations and effective masses in nuclei with large neutron excess2010

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

      Mod.Phys.Lett.

      Volume: 25 Pages: 1923-1926

  • [Journal Article] Systematic calculation of electric dipole strength with Skyrme-HF plus RPA2010

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

      Mod.Phys.Lett.

      Volume: 25 Pages: 1931-1934

  • [Journal Article] The finite amplitude method for the QRPA2010

    • Author(s)
      P..Avogadro, T.Nakatsukasa
    • Journal Title

      Mod.Phys.Lett.

      Volume: 25 Pages: 1999-2000

  • [Journal Article] Linear response calculation using canonical-basis TDHFB with a schematic pairing functional2010

    • Author(s)
      S.Ebata, et al.
    • Journal Title

      Mod.Phys.Lett.

      Volume: 25 Pages: 2001-2002

  • [Journal Article] Phenomenological analysis of the oblate-prolate symmetry breaking in triaxial deformation dynamics2010

    • Author(s)
      K.Sato, et al.
    • Journal Title

      Mod.Phys.Lett.

      Volume: 25 Pages: 2018-2019

  • [Journal Article] Microscopic analysis of shape mixing in low-lying states of proton-rich Kr isotopes2010

    • Author(s)
      K.Sato, et al.
    • Journal Title

      Mod.Phys.Lett.

      Volume: 25 Pages: 2020-2021

  • [Journal Article] Canonical-basis time-dependent Hartree-Fock-Bogoliubov theory and linear-response calculations2010

    • Author(s)
      S.Ebata, et al.
    • Journal Title

      Phys.Rev.C

      Volume: 82 Pages: 034306(13)

    • Peer Reviewed
  • [Journal Article] Roles of deformation and neutron excess on the giant monopole resonance in neutron-rich Zr isotopes2010

    • Author(s)
      K.Yoshida
    • Journal Title

      Phys.Rev.C

      Volume: 82 Pages: 034324(6)

    • Peer Reviewed
  • [Journal Article] Microscopic description of large-amplitude shape-mixing dynamics with inertial functions derived in local quasiparticle random-phase approximation2010

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

      Phys.Rev.C

      Volume: 82 Pages: 064313(16)

    • Peer Reviewed
  • [Journal Article] Surface-enhanced pair transfer amplitude in quadrupole states of neutron-rich Sn isotopes2010

    • Author(s)
      M.Matsuo, Y.Serizawa
    • Journal Title

      Phys.Rev.C

      Volume: 82 Pages: 024318(13)

    • Peer Reviewed
  • [Journal Article] Coherent phonon generation in time-dependent density functional theory2010

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

      Phys.Rev.B

      Volume: 82 Pages: 155110(10)

    • Peer Reviewed
  • [Journal Article] First-principles description for coherent phonon generation in diamond2010

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

      J.Phys.Cond.Matter

      Volume: 22 Pages: 384212(4)

    • Peer Reviewed
  • [Journal Article] Systematic calculation of electric dipole strength with Skyrme-HF plus RPA2010

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

      AIP Conference Proceedings

      Volume: 1235 Pages: 213-218

  • [Journal Article] Real-space and real-time method for linear and nonlinear optical properties of fullerene-based materials2009

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

      AIP Conference Proceedings

      Volume: 1148 Pages: 706-708

  • [Presentation] 時間依存密度汎関数理論によるE1強度分布の大規模並列計算2011

    • Author(s)
      中務孝
    • Organizer
      日本原子力学会 2011年春の年会
    • Place of Presentation
      福井市
    • Year and Date
      20110328-20110330
  • [Presentation] 原子核における核子相関:有限量子多体系の物理2011

    • Author(s)
      中務孝
    • Organizer
      日本物理学会 第66回年次大会
    • Place of Presentation
      新潟市
    • Year and Date
      20110325-20110328
  • [Presentation] Skyrme energy-density functional approach to collective dynamics2011

    • Author(s)
      K.Yoshida
    • Organizer
      International EFES-IN2P3 conference 'Many body correlations from dilute to dense nuclear systems'
    • Place of Presentation
      Paris, France
    • Year and Date
      20110215-20110218
  • [Presentation] Density functional approaches to atomic nuclei2011

    • Author(s)
      T.Nakatsukasa
    • Organizer
      International symposium on nanoscience and quantum physics 2011
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      20110126-20110128
  • [Presentation] Large-amplitude quadrupole collective dynamics in neutron-rich Mg and Cr isotopes2011

    • Author(s)
      N.Hinohara
    • Organizer
      French-Japanese Symposium on Nuclear Structure Problems
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20110105-20110508
  • [Presentation] Recent progress of nuclear density functional calculations-towards to next-generation supercomputer2011

    • Author(s)
      T.Inakura
    • Organizer
      French-Japanese Symposium on Nuclear Structure Problems
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20110105-20110108
  • [Presentation] Shape coexistence/mixing in Mg isotopes2010

    • Author(s)
      N.Hinohara
    • Organizer
      Workshop on Further understanding of 'Island of Inversion' via nuclear moments and inelastic reactions
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20101220-20101221
  • [Presentation] First-principles theoretical description for many-electron dynamics induced by ultrashort laser pulses2010

    • Author(s)
      K.Yabana
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      20101215-20101220
  • [Presentation] Dynamical role of halo nucleons in nuclear reactions2010

    • Author(s)
      K.Yabana
    • Organizer
      Halo 2010 symposium
    • Place of Presentation
      Zushi,Japan
    • Year and Date
      20101206-20101209
  • [Presentation] Nuclear density-functional theory for collective dynamics2010

    • Author(s)
      K.Yoshida
    • Organizer
      International Symposium From Quarks to Supernovae
    • Place of Presentation
      Izu-Atagawa, Japan
    • Year and Date
      20101128-20101130
  • [Presentation] Pygmy and giant resonances in neutron-rich nuclei2010

    • Author(s)
      K.Yoshida
    • Organizer
      SAMURAI workshop-Towards first experiments-
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20101122-20101123
  • [Presentation] Probing neutron-proton pair correlations2010

    • Author(s)
      M.Matsuo
    • Organizer
      RIBF symposium : Probing neutron-proton pair correlations
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20101119-20101120
  • [Presentation] Microscopic description of large-amplitude shape-mixing dynamics with local QRPA inertial functions2010

    • Author(s)
      N.Hinohara
    • Organizer
      International Symposium New Faces of Atomic Nuclei
    • Place of Presentation
      Okinawa, Japan
    • Year and Date
      20101115-20101117
  • [Presentation] Pairing in neutron-rich nuclei : spatioal correlation and two-neutron transfer2010

    • Author(s)
      M.Matsuo
    • Organizer
      Aizu-JUSTIPEN-EFES symposium : Cutting-edge physics of unstable nuclei
    • Place of Presentation
      Aizu-Wakamatsu, Japan
    • Year and Date
      20101110-20101113
  • [Presentation] Skyrme-QRPA approach to collective modes of excitation in deformed nuclei2010

    • Author(s)
      K.Yoshida
    • Organizer
      Aizu-JUSTIPEN-EFES symposium : Cutting-edge physics of unstable nuclei
    • Place of Presentation
      Aizu-Wakamatsu, Japan
    • Year and Date
      20101110-20101113
  • [Presentation] Large-amplitude shape mixing dynamics with local QRPA inertial functions2010

    • Author(s)
      N.Hinohara
    • Organizer
      Aizu-JUSTIPEN-EFES symposium : Cutting-edge physics of unstable nuclei
    • Place of Presentation
      Aizu-Wakamatsu, Japan
    • Year and Date
      20101110-20101113
  • [Presentation] Systematic calculations of electric dipole response with fully self-consistent SkyrmeRPA2010

    • Author(s)
      T.Inakura, et al.
    • Organizer
      Aizu-JUSTIPEN-EFES symposium : Cutting-edge physics of unstable nuclei
    • Place of Presentation
      Aizu-Wakamatsu, Japan
    • Year and Date
      20101110-20101113
  • [Presentation] Skyrme energy-density functional approach to nuclear collective dynamics2010

    • Author(s)
      吉田賢市
    • Organizer
      基研研究会「大振幅集団運動の微視的理論」
    • Place of Presentation
      京都市
    • Year and Date
      20101024-20101026
  • [Presentation] Lage-scale numerical simulations of nuclear many-body dynamics using the time-dependent density-functional theory2010

    • Author(s)
      T.Nakatsukasa
    • Organizer
      International workshop on nuclear structure : recent developments
    • Place of Presentation
      Dubna, Russia
    • Year and Date
      20101014-20101016
  • [Presentation] 核子多体系シミュレーション計算の現状と課題2010

    • Author(s)
      中務孝
    • Organizer
      次世代格子ゲージシミュレーション研究会
    • Place of Presentation
      和光市
    • Year and Date
      20100924-20100926
  • [Presentation] 中性子過剰Mg核の大振幅変形ダイナミクスの微視的記述2010

    • Author(s)
      日野原伸生, 他
    • Organizer
      日本物理学会 2010年秋季大会
    • Place of Presentation
      北九州市
    • Year and Date
      20100911-20100914
  • [Presentation] Complex absorbing potential for the continuum in real-space calculations2010

    • Author(s)
      T.Nakatsukasa
    • Organizer
      Japan-Italy workshop on correlations in reactions and continuum
    • Place of Presentation
      Torino, Italy
    • Year and Date
      20100906-20100908
  • [Presentation] Continuum response in neutron-rich nuclei : Pohoabsorption and pair transfer2010

    • Author(s)
      M.Matsuo
    • Organizer
      Japan-Italy workshop on correlations in reactions and continuum
    • Place of Presentation
      Torino, Italy
    • Year and Date
      20100906-20100908
  • [Presentation] Skyrme energy-density functional approach to collective excitations in medium-mass to heavy nuclei2010

    • Author(s)
      K.Yoshida
    • Organizer
      Japan-Italy workshop on correlations in reactions and continuum
    • Place of Presentation
      Torino, Italy
    • Year and Date
      20100906-20100908
  • [Presentation] Self-consistent description of nuclear photoabsorption cross sections2010

    • Author(s)
      T.Nakatsukasa
    • Organizer
      Zakopane Conference on Nuclear Physics
    • Place of Presentation
      Zakopane, Poland
    • Year and Date
      20100830-20100905
  • [Presentation] Local QRPA vibrational and rotational inertial functions for large-amplitude quadrupole collective dynamics2010

    • Author(s)
      N.Hinohara
    • Organizer
      Zakopane Conference on Nuclear Physics
    • Place of Presentation
      Zakopane, Poland
    • Year and Date
      20100830-20100905
  • [Presentation] Systematic calculations of electric dipole responses with fully self-consistent SkyrmeRPA2010

    • Author(s)
      T.Inakura, et al.
    • Organizer
      Workshop on Gamma Strength and Level Density in Nuclear Physics and Nuclear Technology,
    • Place of Presentation
      Dresden, Germany
    • Year and Date
      20100830-20100903
  • [Presentation] Anomalous pair vibrational states in neutron-rich Sn isotopes beyond A=1322010

    • Author(s)
      M.Matsuo
    • Organizer
      Nuclear Structure 2010
    • Place of Presentation
      Berkeley, USA
    • Year and Date
      20100808-20100813
  • [Presentation] Exotic modes of excitation in deformed neutron-rich nuclei2010

    • Author(s)
      K.Yoshida
    • Organizer
      Nuclear Structure 2010
    • Place of Presentation
      Berkeley, USA
    • Year and Date
      20100808-20100813
  • [Presentation] Probing low-density pairing properties via neutron-rich nuclei2010

    • Author(s)
      M.Matsuo
    • Organizer
      International symposium on nuclear symmetry energy
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20100726-20100728
  • [Presentation] Linear response calculations using the canonical-basis TDHFB with a schematic pairing functional2010

    • Author(s)
      T. Nakatsukasa,
    • Organizer
      International Nuclear Physics Conference
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      20100704-09
  • [Presentation] Time-dependent approaches to structure and reactions2010

    • Author(s)
      T.Nakatsukasa
    • Organizer
      Annual UNEDF Meeting
    • Place of Presentation
      East Lansing, USA
    • Year and Date
      20100621-20100625
  • [Presentation] Pygmy resonance and giant resonance in deformed nuclei2010

    • Author(s)
      K.Yoshida
    • Organizer
      Second EMMI-EFES Workshop on Neutron-Rich Exotic Nuclei
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20100616-20100618
  • [Presentation] Microscopic description of large-amplitude shape dynamics in neutron-rich Mg isotopes2010

    • Author(s)
      N.Hinohara
    • Organizer
      Second EMMI-EFES Workshop on Neutron-Rich Exotic Nuclei
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20100616-20100618
  • [Presentation] Systematic calculations of electric dipole responses with fully self-consistent Skyrme-HF+RPA2010

    • Author(s)
      T.Inakura, et al.
    • Organizer
      Second EMMI-EFES Workshop on Neutron-Rich Exotic Nuclei
    • Place of Presentation
      Wako, Japan
    • Year and Date
      20100616-20100618
  • [Presentation] Time-dependent approaches to quantum dynamics of many-body systems2010

    • Author(s)
      T.Nakatsukasa
    • Organizer
      International workshop on decoherence in quantum dynamical systems
    • Place of Presentation
      Trento, Italy
    • Year and Date
      20100426-20100430
  • [Presentation] 多核子移行反応の微視的定式化への可能性2010

    • Author(s)
      矢花一浩
    • Organizer
      日本物理学会 第65回年次大会
    • Place of Presentation
      岡山市
    • Year and Date
      2010-03-21

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Published: 2012-07-19  

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