Vorticity ratchet

A Pérez-Madrid, T Alarcón and J.m Rubı́

Physica A: Statistical Mechanics and its Applications, 2003, vol. 325, issue 1, 55-61

Abstract: We present a new class of thermal ratchets operating under the action of a symmetry breaking non-Hermitian perturbation which rectifies thermal fluctuations, and driven by an unbiased periodic force. The peculiar non-Hermitian dynamics which follows cause energy transduction from the force to the system in such a way that an average ‘uphill’ particle current is induced. We discuss physical realizations in assemblies of orientable particles, in itinerant oscillator models, and in problems of diffusion in disordered media.

Keywords: Brownian motor; Transport processes; Dissipation (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:325:y:2003:i:1:p:55-61

DOI: 10.1016/S0378-4371(03)00183-3

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