Eur. Phys. J. A 13, 105-107 (2002)
The large probability of the ground statesA. Arima1, N. Yoshinaga2 and Y.M. Zhao3, 4
1 The House of Councilors, 2-1-1 Nagatacho, Chiyodaku, Tokyo 100-8962, Japan
2 Department of Physics, Saitama University, Urawa, Saitama 338-8570, Japan
3 Cyclotron Center, Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
4 Department of Physics, Southest University, Nanjing 21008, PRC
(Received: 1 May 2001)
We investigate the dominance of 0+ states as the lowest states in shell model calculations with random two-body interactions in a single j-shell. We have found an explanation of the large probability of the 0+ ground state.
05.30.-d - Quantum statistical mechanics.
05.45.-a - Nonlinear dynamics and nonlinear dynamical systems.
21.60.Cs - Shell model.
24.60.Lz - Chaos in nuclear systems .
© Società Italiana di Fisica, Springer-Verlag 2002