1. Absolute negative mobility in a one-dimensional overdamped system
- Author
-
Ruyin Chen, Jian-Qiang Zhang, Lin-Ru Nie, and Wan-Li Pan
- Subjects
Minimal model ,Physics ,Quantum mechanics ,Master equation ,General Physics and Astronomy ,Statistical physics ,Current (fluid) ,Constant (mathematics) ,Periodic potential ,Noise (electronics) ,Expression (mathematics) - Abstract
A one-dimensional overdamped system consisting of a symmetric periodic potential, a constant bias force and a trichotomous noise was investigated. In the frame of master equations, we derived analytical expression of its current. By means of numerical calculations, the results indicate that the current first increases, then decreases and finally increases with the bias force increasing, i.e., an absolute negative mobility (ANM) phenomenon. Our further investigations presented dependence of the ANM phenomenon on parameters of the noise. Its intrinsic physical mechanism was also open up, and a minimal model with ANM phenomenon is demonstrated.
- Published
- 2015