Brownian free energy ratchets

Hai-Yan Wang and Jing-Dong Bao

Physica A: Statistical Mechanics and its Applications, 2003, vol. 323, issue C, 197-212

Abstract: The directed motion of a Brownian particle subject to a unequilibrium fluctuation which moves in a two-dimensional ratchet potential is studied. Thus, a working model of the free-energy ratchet is proposed through eliminating no-transport variables. The properties of the present model such as the current, the efficiency, the diffusion coefficient and the Pe number are discussed. Comparison with the previous one-dimensional models, some novel phenomena are observed.

Keywords: Ratchet; Current; Efficiency; Diffusion (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:323:y:2003:i:c:p:197-212

DOI: 10.1016/S0378-4371(03)00031-1

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