Kramers problem for a multiwell potential.

Arrayas, M. and Kaufman, I. Kh. and Luchinsky, D. G. and McClintock, Peter V. E. and Soskin, Stanislav M. (2000) Kramers problem for a multiwell potential. Physical review letters, 84 (12). pp. 2556-2559. ISSN 1079-7114

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Abstract

Fluctuational escape from a multiwell potential is shown to display new features, as compared to the conventional single-well case. The flux J may depend on friction Gamma exponentially strongly, over an exponentially long period; for small enough temperatures, J(Gamma) undergoes marked oscillations in the range of small Gamma, and the time evolution of J changes drastically as Gamma exceeds a critical value.