Transport and bistable kinetics of a Brownian particle in a nonequilibrium environment

被引：1

作者：

Chaudhuri, Jyotipratim Ray ^{[1
]}

Banik, Suman Kumar ^{[2
]}

Chattopadhyay, Sudip ^{[3
]}

Chaudhury, Pinaki ^{[4
]}

机构：

[1] Katwa Coll, Dept Phys, Burdwan 713130, W Bengal, India

[2] Virginia Polytech Inst & State Univ, Dept Biol Sci, Blacksburg, VA 24061 USA

[3] Bengal Engn & Sci Univ, Dept Chem, Sibpur 711103, Howrah, India

[4] Univ Calcutta, Dept Chem, Kolkata 700009, India

来源：

JOURNAL OF MATHEMATICAL PHYSICS | 2008年 / 49卷 / 11期

关键词：

Brownian motion; diffusion;

D O I：

10.1063/1.3013122

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A system reservoir model, where the associated reservoir is modulated by an external colored random force, is proposed to study the transport of an overdamped Brownian particle in a periodic potential. We then derive the analytical expression for the average velocity, mobility, and diffusion rate. The bistable kinetics and escape rate from a metastable state in the overdamped region are studied consequently. By numerical simulation we then demonstrate that our analytical escape rate is in good agreement with that of the numerical result.

引用

页数：15

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