Three state spatially symmetric Brownian ratchet
Abstract
We investigate a biologically inspired Brownian ratchet consisting of three spatially symmetric potentials, each with the same periodicity. Spatial symmetry of the system is broken only by the phase shift between the different potentials, as opposed to the classic Brownian ratchet whose symmetry is broken by the shape of the potential. By switching from one potential to another with certain transition rates, directed motion can be obtained. The properties of the resulting current is investigated by numerical simulation and analytical theory.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MAR.H8001G