Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1890697 | Chaos, Solitons & Fractals | 2007 | 7 Pages |
Abstract
The movement of a Brownian particle in a fluctuating two-state periodic potential is investigated. At high transition rate, we use a perturbation method to obtain the analytical solution of the model. It is found that the net current is a peaked function of thermal noise, barrier height and the fluctuation ratio between the two states. The thermal noise may facilitate the directed motion at a finite intensity. The asymmetry parameter of the potential is sensitive to the direction of the net current.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Statistical and Nonlinear Physics
Authors
Baoquan Ai, Liqiu Wang, Lianggang Liu,