Abstract
Thermally activated escape over a potential barrier in the presence of periodic driving is considered. By means of novel time-dependent path-integral methods we derive asymptotically exact weak-noise expressions for both the instantaneous and the time-averaged escape rate. The agreement with accurate numerical results is excellent over a wide range of driving strengths and driving frequencies.
- Received 23 June 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.1639
©2000 American Physical Society
