Abstract
We study directed diffusion of a particle in a periodic symmetric potential under the influence of a time-periodic external field. The field lowers the symmetry of the phase space flow which results in directed diffusion even if the potential and the field are reflection symmetric. We analyze the interplay between broken symmetry and dynamical chaos.
- Received 13 August 1999
DOI:https://doi.org/10.1103/PhysRevE.61.7215
©2000 American Physical Society
