Transport of Forced Quantum Motors in the Strong Friction Limit

Details Transport of Forced Quantum Motors in the Strong Friction Limit Transport of Forced Quantum Motors in the Strong Friction Limit

2006-11-10

arxiv.org/abs/cond-mat/0611277v2

Acta Physica Polonica B 38, 1855 - 1863 (2007)

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 5 figures, Presented at the Marian Smoluchowski Symposium on Statistical Physics, Krakow, Poland, May 14-17, 2006; A

Scientific paper

The directed transport of an overdamped Brownian motor moving in a spatially periodic potential that lacks reflection symmetry (i.e. a ratchet potential) is studied when driven by thermal and dichotomic nonequilibrium noise in the presence of an external, constant load force. We consider both, the classical and the quantum tunneling assisted regimes. The current-load characteristics are investigated as a function of the system parameters like the load force, the temperature and the amplitude strength of the applied two-state noise.

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