PHASE-TRANSITIONS IN THE PROBLEM OF THE DECAY OF A METASTABLE STATE

被引：124

作者：

CHUDNOVSKY, EM

机构：

[1] Physics Department, Lehman College, City University of New York, Bronx, NY 10468-1589, Bedford Park Boulevard West

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 12期

关键词：

D O I：

10.1103/PhysRevA.46.8011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The decay of a metastable state is studied by means of a functional-integral approach. Depending on the shape of the potential barrier, the crossover from thermal activation to thermally assisted quantum tunneling is either a first- or second-order phase transition on temperature. Below the crossover temperature, first-order transitions between different tunneling regimes are possible. The general features of these transitions, and the possibilities to observe them, are discussed.

引用

页码：8011 / 8014

页数：4

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