Brownian motors driven by temperature oscillations

被引：178

作者：

Reimann, P ^{[1
]}

Bartussek, R ^{[1
]}

Haussler, R ^{[1
]}

Hanggi, P ^{[1
]}

机构：

[1] UNIV AUGSBURG,DEPT PHYS,D-86135 AUGSBURG,GERMANY

来源：

PHYSICS LETTERS A | 1996年 / 215卷 / 1-2期

关键词：

Brownian motor; ratchet; non-equilibrium fluctuations;

D O I：

10.1016/0375-9601(96)00222-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study directed motion of a Brownian particle in a periodic ''ratchet''-potential due to a periodically oscillating temperature of the thermal environment. Precise numerical results are compared against analytical approximations for asymptotically slow and fast temperature oscillations. This ''diffusion-ratchet'' tends to resist carrying a current for slow and fast temperature modulations, while showing a maximal current at moderate frequencies.

引用

页码：26 / 31

页数：6

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