Fluctuation Induced Drift and Current Reversal in Symmetric Potentials

Rangan Lahiri

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arXiv · cond-mat/9607099

Fluctuation Induced Drift and Current Reversal in Symmetric Potentials

Rangan Lahiri

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Abstract

We explore the motion of a classical particle in a symmetric potential with non-Gaussian skewed white noise. We show analytically and numerically that the presence of nonzero odd moments leads to a macroscopic current. For a noise with a vanishing third moment we find that the current changes sign as the potential or the noise strength is increased. Possible physical situations are discussed including motor-protein motion and driven systems like fluidized beds.

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Rangan Lahiri. 1996-07-14. Fluctuation Induced Drift and Current Reversal in Symmetric Potentials. https://arxiv.org/abs/cond-mat/9607099

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