Correlations in quantum systems and branch points in the complex plane

被引：14

作者：

Rotter, I ^{[1
]}

机构：

[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW C | 2001年 / 64卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.64.034301

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Branch points in the complex plane are responsible for avoided level crossings in closed and open quantum systems. They create not only an exchange of the wave functions but also a mixing of the states of a quantum system at high level density. The influence of branch points in the complex plane on the low-lying states of the system is small.

引用

页码：343011 / 343016

页数：6

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