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
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.
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页数:15
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