Efficiency of Brownian Motors
Statistical Mechanics
2009-10-31 v1
Abstract
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.
Cite
@article{arxiv.cond-mat/9803302,
title = {Efficiency of Brownian Motors},
author = {J. M. R. Parrondo and J. M. Blanco and F. J. Cao and R. Brito},
journal= {arXiv preprint arXiv:cond-mat/9803302},
year = {2009}
}
Comments
LaTeX 209, 6 pages, 7 postscript figures, uses psfig