FORMATION OF FAST AND SLOW DECAY MODES IN N-LEVEL SYSTEMS COUPLED TO ONE OPEN CHANNEL

被引：39

作者：

DITTES, FM ^{[1
]}

HARNEY, HL ^{[1
]}

ROTTER, I ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS A | 1991年 / 153卷 / 8-9期

关键词：

D O I：

10.1016/0375-9601(91)90695-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The scattering matrix of a system with N bound states coupled to one continuum is investigated. In order to characterize the typical behaviour, statistical arguments are used. For sufficiently strong coupling between bound states and continuum, one state is formed the width of which is large compared to the sum of the widths of the other ones. From the topological structure of the S-matrix it follows that this broad mode does not show up as a resonance but leads to the formation of structures varying at a scale which is of the order of the length of the spectrum.

引用

页码：451 / 455

页数：5

共 15 条

[11]

ROTTER I, 1991, IN PRESS REP PROG PH, V54

[12] ON A STATISTICAL-THEORY OF OVERLAPPING RESONANCES [J].