Noise-assisted classical adiabatic pumping in a symmetric periodic potential

Details Noise-assisted classical adiabatic pumping in a symmetric periodic potential Noise-assisted classical adiabatic pumping in a symmetric periodic potential

2002-04-15

arxiv.org/abs/cond-mat/0204322v2

Phys. Rev. E 66, 021111 (2002).

Physics

Condensed Matter

Statistical Mechanics

six pages, 3 figures

Scientific paper

10.1103/PhysRevE.66.021111

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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