Brownian rectifiers in the presence of temporally asymmetric unbiased forces

Details Brownian rectifiers in the presence of temporally asymmetric unbiased forces Brownian rectifiers in the presence of temporally asymmetric unbiased forces

2004-01-12

arxiv.org/abs/cond-mat/0401188v1

Phys. Rev. E 70, 021102 (2004) [6 pages]

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevE.70.021102

The efficiency of energy transduction in a temporally asymmetric rocked ratchet is studied. Time asymmetry favours current in one direction and suppresses it in the opposite direction due to which large efficiency ~ 50% is readily obtained. The spatial asymmetry in the potential together with system inhomogeneity may help in further enhancing the efficiency. Fine tuning of system parameters considered leads to multiple current reversals even in the adiabatic regime.

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