Mean escape time over a fluctuating barrier

被引：24

作者：

Iwaniszewski, J ^{[1
]}

机构：

[1] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland

来源：

PHYSICAL REVIEW E | 2003年 / 68卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.68.027105

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

An approximate method for studying activation over a fluctuating barrier of potential is proposed. It involves considering separately the slow and fast components of barrier fluctuations, and it applies for any value of their correlation time tau. It gives exact results for the limiting values tau-->0 and tau-->infinity, and the agreement with numerics in between is also excellent, both for dichotomic and Gaussian barrier perturbations.

引用

页数：4