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Noise-assisted classical adiabatic pumping in a symmetric periodic potential

Usmani, O.
Lutz, E.
Published in Physical Review. E. 2002, vol. 66, no. 2, p. 021111.1-021111.6
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.
Keywords Statistical MechanicsCondensed matter
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USMANI, O., LUTZ, E., BUTTIKER, Markus. Noise-assisted classical adiabatic pumping in a symmetric periodic potential. In: Physical Review. E, 2002, vol. 66, n° 2, p. 021111.1-021111.6. https://archive-ouverte.unige.ch/unige:4249

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Deposited on : 2009-11-30

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