Kramers rate for thermal plus dichotomous noise applied to ratchets

被引：56

作者：

Reimann, P

Elston, TC

机构：

[1] LOS ALAMOS NATL LAB, CTR NONLINEAR STUDIES, LOS ALAMOS, NM 87545 USA

[2] LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.77.5328

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Kramers escape problem for an overdamped Brownian particle subjected to both dichotomous and thermal noise is studied. In the limit of weak thermal noise an asymptotically exact rate formula is obtained that is valid for general potentials and arbitrary correlation times of the dichotomous noise. Our predictions are verified by accurate numerical results and their consequences with regards to nonequilibrium potentials, resonant activation, and Brownian motors are discussed.

引用

页码：5328 / 5331

页数：4

共 38 条

[1]

Abramowitz M., 1970, HDB MATH FUNCTIONS

[2]

AJDARI A, 1992, CR ACAD SCI II, V315, P1635

[3] FLUCTUATION DRIVEN RATCHETS - MOLECULAR MOTORS [J].