CHAOS AND SYMMETRY IN THE INTERACTING BOSON MODEL

被引：12

作者：

MIZUSAKI, T

YOSHINAGA, N

SHIGEHARA, T

CHEON, T

机构：

[1] SAITAMA UNIV,COLL LIBERAL ARTS & SCI,URAWA,SAITAMA 338,JAPAN

[2] UNIV TOKYO,CTR COMP,BUNKYO KU,TOKYO 113,JAPAN

[3] HOSEI UNIV,DEPT PHYS,CHIYODA KU,TOKYO 102,JAPAN

来源：

PHYSICS LETTERS B | 1991年 / 269卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)91442-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The level spectra of the interacting boson model for the whole range of parameters which span over three dynamical symmetries are analyzed in terms of the nearest-neighbour level-spacing distribution, and the "quantum chaos map" is charted. Strongly chaotic level spectra are seen in between SU (3) and O (6) symmetries. Unexpected persistence of Poisson statistics is found along the line connecting U (5) and O (6) symmetries. We argue that this is to be identified with the Berry-Robnik distribution with high division number arising from the preserved O (5) subsymmetry.

引用

页码：6 / 12

页数：7

共 28 条

[1] CHAOS IN THE LOW-LYING COLLECTIVE STATES OF EVEN-EVEN NUCLEI [J].