EFFICIENCY OF ENERGY CONVERSION BY A BROWNIAN MOTOR WITH A FLUCTUATING DOUBLE-WELL POTENTIAL

被引:0
|
作者
Korochkova, T. E. [1 ]
Klymenko, V. E. [1 ]
Rozenbaum, V. M. [1 ]
机构
[1] Natl Acad Sci Ukraine, Inst Surface Chem, 17 Gen Naumov Str, UA-03164 Kiev, Ukraine
来源
UKRAINIAN JOURNAL OF PHYSICS | 2005年 / 50卷 / 05期
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The efficiency of a Brownian motor with a periodic double-well potential, which undergoes the random shifting by half a period, has been analyzed in the framework of the thermodynamics of nonequilibrium processes, which provided the energy conversion from one form into another. An introduced measure of coupling between corresponding processes has been determined in terms of the difference between the potential barrier heights. The larger the difference, the stronger the coupling between processes, with the efficiency of the Brownian motor approaching unity.
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页码:516 / 518
页数:3
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