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Efficiency of Brownian motors

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Rodríguez Parrondo, Juan Manuel and Blanco, J. M. and Cao García, Francisco Javier and Brito, Ricardo (1998) Efficiency of Brownian motors. Europhysics Letters, 43 (3). pp. 248-254. ISSN 0295-5075

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Official URL: http://dx.doi.org/10.1209/epl/i1998-00348-5




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.


Item Type:Article
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©EDP Sciences. This work has been financially supported by Dirección General de Investigación Científica y Técnica (DGICYT) (Spain) Project No. PB94-0265. JMB and FJC acknowledge financial support from the program Becas de Colaboración of the Ministerio de Educación (Spain).

Uncontrolled Keywords:Thermal ratchets; Fluctuation
Subjects:Sciences > Physics > Thermodynamics
ID Code:21514
Deposited On:11 Jun 2013 15:39
Last Modified:24 Jul 2018 10:59

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