Energy losses in a flashing ratchet with different potential well shapes

V.M. Rozenbaum, D.-Y. Yang, S.H. Lin and T.Y. Tsong

Physica A: Statistical Mechanics and its Applications, 2006, vol. 363, issue 2, 211-216

Abstract: A flashing ratchet is considered, which involves periodic two-well potentials fluctuating via random shifts of one half-period. Such a Brownian motor exhibits the maximum efficiency tending to unity, provided one of the barriers blocks the reverse movement of a Brownian particle and the potential wells have the same curvatures and the half-period-shifted minima. Analytical expressions are derived for the energy losses arising from a discrepancy between potential well curvatures and a deviation of the inter-well distance from a half-period. The dependences of the energy losses on the parameters of the model are analyzed.

Keywords: Brownian motor efficiency; Flashing ratchet; Energy losses (search for similar items in EconPapers)
Date: 2006
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:363:y:2006:i:2:p:211-216

DOI: 10.1016/j.physa.2005.08.019

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