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Disorder Induced Diffusive Transport In Ratchets

M. N. Popescu·C. M. Arizmendi·A. L. Salas-Brito·F. Family
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Abstract

The effects of quenched disorder on the overdamped motion of a driven particle on a periodic, asymmetric potential is studied. While for the unperturbed potential the transport is due to a regular drift, the quenched disorder induces a significant additional chaotic ``diffusive'' motion. The spatio-temporal evolution of the statistical ensemble is well described by a Gaussian distribution, implying a chaotic transport in the presence of quenched disorder.

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M. N. Popescu, C. M. Arizmendi, A. L. Salas-Brito, F. Family. 2000-02-11. Disorder Induced Diffusive Transport In Ratchets. https://doi.org/10.1103/physrevlett.85.3321

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