Article

Pramana

, Volume 46, Issue 6, pp 403-410

First online:

Optimal barrier subdivision for Kramers’ escape rate

  • Mulugeta BekeleAffiliated withDepartment of Physics, Indian Institute of Science
  • , G AnanthakrishnaAffiliated withMaterials Research Centre, Indian Institute of Science
  • , N KumarAffiliated withRaman Research InstituteDepartment of Physics, Indian Institute of Science

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Abstract

We examine the effect of subdividing the potential barrier along the reaction coordinate on Kramers’ 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.

Keywords

Kramers problem activated processes reaction rates

PACS Nos

05.70 31.70 87.15