Time oscillations of escape rates in periodically driven systems

被引：98
|
作者：
Smelyanskiy, VN [1 ]
Dykman, MI
Golding, B
机构：
[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
[2] Caelum Res Co, NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.82.3193
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We provide an explicit solution of the: problem of activation escape from a metastable state of a periodically driven Brownian particle, including both the exponent and the prefactor. We find the instantaneous and time-average escape rates, and a crossover in their field dependence, from weak to exponentially strong, with amplitude and period of the driving field. The results apply for an arbitrary ratio between the field amplitude and the noise intensity, and between the field period and the relaxation time of the system. [S0031-9007(99)08926-7].
引用
收藏
页码：3193 / 3197
页数：5
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