Volume 64, Number 3, November 2003
|Page(s)||420 - 426|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 November 2003|
Diffusion-limited loop formation of semiflexible polymers: Kramers theory and the intertwined time scales of chain relaxation and closing
Physics Department, Simon Fraser University - Burnaby, B.C. V5A 1S6, Canada
2 Physics Department, University of Waterloo - Waterloo, Ontario N2L 3G1, Canada
Accepted: 26 August 2003
We show that Kramers rate theory gives a straightforward, accurate estimate of the closing time of a semiflexible polymer that is valid in cases of physical interest. The calculation also reveals how the time scales of chain relaxation and closing are intertwined, illuminating an apparent conflict between two ways of calculating in the flexible limit.
PACS: 87.15.He – Dynamics and conformational changes / 82.37.Np – Single molecule reaction kinetics, dissociation, etc / 82.20.Pm – Rate constants, reaction cross sections, and activation energies
© EDP Sciences, 2003
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