Current reversal in a white noise driven flashing ratchet

被引：67

作者：

Reimann, P ^{[1
]}

机构：

[1] EOTVOS LORAND UNIV, H-1088 BUDAPEST, HUNGARY

来源：

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 1997年 / 290卷 / 1-2期

关键词：

D O I：

10.1016/S0370-1573(97)00064-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The steady-state current for the overdamped Brownian motion in the presence of thermal noise and a periodic 'ratchet' potential of randomly fluctuating amplitude (flashing ratchet) is studied. Focusing on Gaussian white noise driven potential fluctuations, it is shown that the occurrence of a current is generic. For appropriate ratchet potentials, the current changes sign as a function of the friction coefficient or the temperature.

引用

页码：149 / 155

页数：7

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