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arXiv · cond-mat/9911469

Efficiency and current reversals in spatially inhomogeneous ratchets

Debasis Dan·Mangal C. Mahato·A. M. Jayannavar
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Abstract

Efficiency of generation of net unidirectional current in an adiabatically driven symmetric periodic potential system is studied. The efficiency shows a maximum, in the case of an inhomogeneous system with spatially varying periodic friction coefficient, as a function of temperature. The ratchet is not most efficient when it gives maximum current. The direction of current may also be reversed as a function of noise strength when, instead, an asymmetric periodic potential is considered.

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Debasis Dan, Mangal C. Mahato, A. M. Jayannavar. 1999-11-29. Efficiency and current reversals in spatially inhomogeneous ratchets. https://doi.org/10.1142/s0217979200001291

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