Sum rule for modified spontaneous emission rates

被引：79

作者：

Barnett, SM ^{[1
]}

Loudon, R ^{[1
]}

机构：

[1] UNIV ESSEX,DEPT PHYS,COLCHESTER CO4 3SQ,ESSEX,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.77.2444

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the possible modifications of the spontaneous emission rate for an electric dipole transition, caused by the atomic environment, are constrained by a sum rule expressed as an integral. over the transition frequency. This rule is derived on the basis of causality requirements as expressed in the Kramers-Kronig relation.

引用

页码：2444 / 2446

页数：3