Self-similar renormalization approach to barrier crossing processes.

Abstract

An algebraic self-similar renormalization method developed recently for summation of divergent field-theoretical series is applied to the thermally activated escape of a Brownian particle over an arbitrarily shaped barrier. Based on the Mel'nikov-Meshkov result for the underdamped Brownian motion and the inverse friction expansion of the underlying Fokker… (More)

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