Intrawell relaxation of overdamped Brownian particles
Intrawell relaxation of overdamped Brownian particles
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DOI：
10.1103/physreve.59.6422
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发表时间：
1999-06-01
影响因子：
2.4
通讯作者：
Astumian, RD
中科院分区：
文献类型：
--
作者：
Bier, M;Derényi, I;Astumian, RD
We consider an overdamped Brownian particle in a well. When the particle escapes, it does so as an instanton, ie, in one run and without dwelling anywhere on the way from the bottom of the well to the top of the barrier. For a sufficiently steep slope the instanton time equals the time it takes the particle to deterministically slide down the same slope. We show that the instanton time is also the relaxation time for the escape rate after the barrier changes shape.
