Phys. Rev. E 59, 6422–6432 (1999)Intrawell relaxation of overdamped Brownian particlesReceived 12 November 1998; published in the issue dated June 1999 We consider an overdamped Brownian particle in a well. When the particle escapes, it does so as an instanton, i.e., 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. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.59.6422
DOI:
10.1103/PhysRevE.59.6422
PACS:
05.40.-a, 02.50.Ey, 82.20.-w
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