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Noise-assisted classical adiabatic pumping in a symmetric periodic potential

O. Usmani·E. Lutz·M. Buttiker
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Abstract

We consider a classical overdamped Brownian particle moving in a symmetric periodic potential. We show that a net particle flow can be produced by adiabatically changing two external periodic potentials with a spatial and a temporal phase difference. The classical pumped current is found to be independent of the friction and to vanish both in the limit of low and high temperature. Below a critical temperature, adiabatic pumping appears to be more efficient than transport due to a constant external force.

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O. Usmani, E. Lutz, M. Buttiker. 2002-04-15. Noise-assisted classical adiabatic pumping in a symmetric periodic potential. https://doi.org/10.1103/physreve.66.021111

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