Current Reversals in a inhomogeneous system with asymmetric unbiased fluctuations

Details Current Reversals in a inhomogeneous system with asymmetric unbiased fluctuations Current Reversals in a inhomogeneous system with asymmetric unbiased fluctuations

2003-06-24

arxiv.org/abs/physics/0306163v1

Eur. Phys. J. B 37(2004)523-526

Physics

Biological Physics

9 pages, 7 figures

Scientific paper

10.1140/epjb/e2004-00089-9

We present a study of transport of a Brownian particle moving in periodic symmetric potential in the presence of asymmetric unbiased fluctuations. The particle is considered to move in a medium with periodic space dependent friction. By tuning the parameters of the system, the direction of current exhibit reversals, both as a function of temperature as well as the amplitude of rocking force. We found that the mutual interplay between the opposite driving factors is the necessary term for current reversals.

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