Surmounting Oscillating Barriers

Details Surmounting Oscillating Barriers Surmounting Oscillating Barriers

1999-11-22

arxiv.org/abs/cond-mat/9911342v1

Phys. Rev. Lett. 84, 1639 (2000)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.84.1639

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.

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