Bekele, Mulugeta and Ananthakrishna, G and Kumar, N (1999) Mean first passage time approach to the problem of optimal barrier subdivision for Kramer's escape rate. In: Physica A: Statistical Mechanics and its Applications, 270 (1-2). pp. 149-158.
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We consider the effect of subdividing the potential barrier along the reaction coordinate on Kramer's escape rate for a model potential, Using the known supersymmetric potential approach, we show the existence of an optimal number of subdivisions that maximizes the rate, We cast the problem as a mean first passage time problem of a biased random walker and obtain equivalent results, We briefly summarize the results of our investigation on the increase in the escape rate by placing a blow-torch in the unstable part of one of the potential wells. (C) 1999 Elsevier Science B.V. All rights reserved.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Kramer's escape rate;Activated processes;Reaction rates;Blow torch|
|Department/Centre:||Division of Chemical Sciences > Materials Research Centre|
|Date Deposited:||30 Jun 2011 11:45|
|Last Modified:||13 Oct 2011 06:57|
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