Stochastic resonance in washboard potentials
Abstract
We study the mobility of an overdamped particle in a periodic potential tilted by a constant force. The mobility exhibits a stochastic resonance in inhomogeneous systems with space dependent friction coefficient. The result indicates that the presence of an oscillating external field is not essential for the observability of stochastic resonance, at least in an inhomogeneous medium.
- Publication:
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Physics Letters A
- Pub Date:
- July 1999
- DOI:
- 10.1016/S0375-9601(99)00380-1
- arXiv:
- arXiv:cond-mat/9902216
- Bibcode:
- 1999PhLA..258..217D
- Keywords:
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- Condensed Matter - Statistical Mechanics
- E-Print:
- 10 pages, 3 figures