CAUSALITY PROBLEMS FOR FERMI 2-ATOM SYSTEM

被引：141

作者：

HEGERFELDT, GC

机构：

[1] Institut für Theoretische Physik, University of Göttingen

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.72.596

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Let A and B be two atoms or, more generally, a ''source'' and a ''detector'' separated by some distance R. At t = 0 A is in an excited state, B in its ground state, and no photons are present. A theorem is proved that in contrast to Einstein causality and finite signal velocity the excitation probability of B is nonzero immediately after t = 0. Implications are discussed.

引用

页码：596 / 599

页数：4

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