CHAOS-DRIVEN DECAY OF NUCLEAR GIANT-RESONANCES - QUANTUM ROUTE TO SELF-ORGANIZATION

被引：13

作者：

DROZDZ, S

NISHIZAKI, S

WAMBACH, J

机构：

[1] INST NUCL PHYS, PL-31342 KRAKOW, POLAND

[2] IWATE UNIV, COLL HUMANITIES & SOCIAL SCI, MORIOKA, IWATE 020, JAPAN

[3] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM JULICH, INST KERNPHYS, W-5170 JULICH, GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.72.2839

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The influence of background states with increasing level of complexity on the strength distribution of the isoscalar and isovector giant quadrupole resonance in Ca-40 is studied. It is found that the background characteristics, typical for chaotic systems, strongly affect the fluctuation properties of the strength distribution. In particular, the small components of the wave function obey a scaling law analogous to self-organized systems at the critical state. This appears to be consistent with the Porter-Thomas distribution of the transition strength.

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收藏

页码：2839 / 2842

页数：4

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