Volume 35, Number 4, August I 1996
|Page(s)||315 - 317|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Noise-induced transport in symmetric periodic potentials: White shot noise versus deterministic noise
Institut für Physik, Universität Augsburg Memminger Str. 6, D-86135
2 Paul Scherrer Institute - CH-5232 Villigen, Switzerland
3 Department of Theoretical Physics, Silesian University - 40-007 Katowice, Poland
Accepted: 12 June 1996
We elucidate the differences and similarities of directed transport in periodic symmetric potentials that are driven either by Poissonian white shot noise or by deterministic noise. The key ingredient for finite current is identical in both cases: A statistical asymmetry —as characterized by nonvanishing odd-numbered higher-order cumulants of the noise force— yields different forward and backward transition rates.
PACS: 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion
© EDP Sciences, 1996
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