NONEXPONENTIAL DECAY OF A STOCHASTIC ONE-CHANNEL SYSTEM

被引：44

作者：

DITTES, FM ^{[2
]}

HARNEY, HL

MULLER, A

机构：

[1] ZENT INST KERNFORSCH ROSSENDORF, O-8051 DRESDEN, GERMANY

[2] MAX PLANCK INST NUCL PHYS, POSTFACH 103980, W-6900 HEIDELBERG 1, GERMANY

来源：

PHYSICAL REVIEW A | 1992年 / 45卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.45.701

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A general formula is presented that expresses the temporal evolution of compound systems. It connects the time dependence of the density matrix with the energy dependence of the scattering matrix. Using results of random matrix theory, we then study the decay behavior of stochastic compound systems with arbitrary coupling between bound states and decay channels. As an example we consider the case of one open channel and prove a nonexponential decay law for all times that asymptotically is of the form t-3/2.

引用

页码：701 / 705

页数：5

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