2012 Fiscal Year Final Research Report
Nuclear Structure based on Quark Dynamics
| Project Area | Research on the Emergence of Hierarchical Structure of Matter by Bridging Particle, Nuclear and Astrophysics in Computational Science |
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| Project/Area Number |
20105003
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HATSUDA Tetsuo 東京大学, 大学院・理学系研究科, 客員教授 (20192700)
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| Co-Investigator(Kenkyū-buntansha) |
OTSUKA Takaharu 東京大学, 大学院・理学系研究科, 教授 (20201379)
NAKAMURA Atsushi 広島大学, 情報メディア教育センター, 教授 (30130876)
AOKI Sinya 筑波大学, 数理物質科学研究科, 教授 (30192454)
NAKATSUKASA Takashi 独立行政法人理化学研究所, 仁科加速器研究センター, 准主任研究員 (40333786)
FUJII Shinichiro 九州大学, 高等教育開発推進センター, 助教 (90401166)
HIYAMA Emiko 独立行政法人理化学研究所, 仁科加速器研究センター, 准主任研究員 (10311359)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMIZU Noritaka 東京大学, 原子核科学研究センター, 特任准教授 (30419254)
SASAKI Shoichi 東北大学, 理学研究科, 准教授 (60332590)
YABANA Kazuhiro 筑波大学, 数理物質科学系, 教授 (70192789)
TAKANO Masatoshi 早稲田大学, 理工学術院, 教授 (00257198)
NEMURA Hidekatsu 筑波大学, 計算科学研究センター, 特任准教授 (80391738)
SUZUKI Toshio 日本大学, 文理学部, 教授 (70139070)
ISHII Noriyoshi 筑波大学, 計算科学研究センター, 特任准教授 (40360490)
FUJII Shinichiro 東京大学, 大学院・理学系研究科, 特任准教授 (90401166)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 格子QCD / 原子核構造 / 中性子星 / ストレンジネス |
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| Research Abstract |
To derive the nuclear force from first principle lattice quantum chromo dynamics (QCD) simulations, HAL QCD method was developed and established. The equation of state for asymmetric nuclear matter at finite temperature, which is the key input for describing the supernova explosion, was derived on the basis of the cluster variational method. Also, a reduction formula for the Wilson-fermion determinant necessary to study the phase structure of dense QCD was derived. The Gaussian expansion method for quantum few-body calculation was extended to five-body systems with arbitrary two-body interactions. The Monte Carlo shell model, which is powerful method to study the nuclear Hamiltonian with large dimension, was further developed by improving the numerical argorithm and by introducing a new extrapolation method on the basis of the energy variance. A new code of time-dependent density functional theory with particle paring was developed: It lead to a few orders of magnitude numerical speed-up and was applied to study various nuclear collective motions.
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