Transport and bistable kinetics of a brownian particle in a nonequilibrium environment
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Date
2008-11
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Publisher
AIP Publishing
Abstract
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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Keywords
brownian motion, diffusion, fluctuation-induced transport, molecular motors, stochastic dynamics, thermal ratchets, external noise, colored-noise, system driven, heat, bath, motion, models
Citation
Chaudhuri, J. R.; Banik, S. K.; Chattopadhyay, S.; Chaudhury, P., "transport and bistable kinetics of a Brownian particle in a nonequilibrium environment," J. Math. Phys. 49, 113303 (2008); http://dx.doi.org/10.1063/1.3013122