Nonlinear noninertial response of a Brownian particle in a tilted periodic potential to a strong ac force

被引：15

作者：

Coffey, WT ^{[1
]}

Déjardin, JL

Kalmykov, YP

机构：

[1] Trinity Coll, Dept Elect & Elect Engn, Dublin 2, Ireland

[2] Univ Perpignan, Ctr Etud Fondamentales, F-66860 Perpignan, France

来源：

PHYSICAL REVIEW E | 2000年 / 61卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.61.4599

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：

The solution of the Langevin equation describing the dynamics of a Brownian particle in a tilted periodic potential in the overdamped limit is obtained in terms of a matrix continued fraction, allowing us to evaluate statistical averages governing the nonlinear response to a strong ac force. Pronounced nonlinear effects are observed for large values of the ac force. For a weak ac force and low noise strength, the results obtained agree closely with previously available linear response and noiseless solutions, respectively.

引用

页码：4599 / 4602

页数：4

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