Efficiency of Brownian Motors

Details Efficiency of Brownian Motors Efficiency of Brownian Motors

1998-03-25

arxiv.org/abs/cond-mat/9803302v1

Europhys. Lett, 43 (3), 248-254 (1998)

Physics

Condensed Matter

Statistical Mechanics

LaTeX 209, 6 pages, 7 postscript figures, uses psfig

Scientific paper

10.1209/epl/i1998-00348-5

The efficiency of different types of Brownian motors is calculated analytically and numerically. We find that motors based on flashing ratchets present a low efficiency and an unavoidable entropy production. On the other hand, a certain class of motors based on adiabatically changing potentials, named reversible ratchets, exhibit a higher efficiency and the entropy production can be arbitrarily reduced.

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