Exact formula for currents in strongly pumped diffusive systems

Details Exact formula for currents in strongly pumped diffusive systems Exact formula for currents in strongly pumped diffusive systems

2009-09-02

arxiv.org/abs/0909.0424v1

J. Stat. Phys. (2009) 136:917-925

Physics

Condensed Matter

Statistical Mechanics

10 pages, accepted for publication in the Journal of Statistical Physics

Scientific paper

10.1007/s10955-009-9818-x

We analyze a generic model of mesoscopic machines driven by the nonadiabatic
variation of external parameters. We derive a formula for the probability
current; as a consequence we obtain a no-pumping theorem for cyclic processes
satisfying detailed balance and demonstrate that the rectification of current
requires broken spatial symmetry.

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