Stochastic approach to nuclear shell model |
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| Authors: | Takaharu Otsuka Takahiro Mizusaki Yutaka Utsuno Michio Honma |
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| Institution: | (1) Department of Physics, University of Tokyo, Hongo, 113 Tokyo, Japan;(2) Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi Aizu-Wakamatsu, 965 Fukushima, Japan;(3) RIKEN, 2-1 Hirosawa, Wako, 351-01 Saitama, Japan |
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| Abstract: | We propose a Quantum Monte Carlo diagonalization method for solving the quantum many-body interacting systems. Not only the
ground state but also low-lying excited states are obtained with their wave functions. Consequently the level structure of
low-lying states can be studied with realistic interactions. After testing this method with48Cr, we report that the doubly closed shell probability of56Ni is shown to be only 53% in a full pf shell calculation, in contrast to the corresponding probability of48Ca which reaches 86%. The most recent results on32Mg are presented.
Presented by T. Otsuka at the International Conference on “Atomic Nuclei and Metallic Clusters”, Prague, September 1–5, 1997.
This work was supported in part by Grant-in-Aid for Scientific Research (B) (No. 08454058) from the Ministry of Education,
Science and Culture. |
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