Ground State Properties with a Random Two-Body Interaction(Nuclear Physics)
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概要
- 論文の詳細を見る
We apply a two-body random ensemble to a hypothetical system of spinless fermions occupying a one-dimensional rotationally invariant orbit in order to study the statistical tendencies of spins of ground states for a random two-body interaction. We also investigate the origin of the dominance of spin-zero ground states of a single-j shell in the nuclear shell model, which can be interpreted geometrically as a particular case of the simple hypothetical model we consider. Assuming a specific symmetry, or the doublet structure due to time-reversal symmetry, it is found that the ensemble has a preference for a ground state whose spin is zero. We demonstrate how the time-reversal symmetry and its doublet structure affect this ground state tendency.
- 理論物理学刊行会の論文
- 2007-09-25
著者
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Shimizu Noritaka
Department of Cardiology, Odawara Municipal Hospital
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Shimizu Noritaka
Department Of Physics The University Of Tokyo
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Otsuka Takaharu
Department Of Physics The University Of Tokyo:center For Nuclear Study University Of Tokyo:riken
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Otsuka Takaharu
Department Of Physics And Center For Nuclear Studies University Of Tokyo:riken Hirosawa
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SHIMIZU Noritaka
Department of Physics, The University of Tokyo
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