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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/24210

Title: Non-Markovian dynamics of reaction coordinate in polymer folding
Authors: Sakaue, T.
Walter, J. -C.
Carlon, E.
Vanderzande, Carlo
Issue Date: 2017
Citation: SOFT MATTER, 13(17), p. 3174-3181
Abstract: We develop a theoretical description of the critical zipping dynamics of a self-folding polymer. We use tension propagation theory and the formalism of the generalized Langevin equation applied to a polymer that contains two complementary parts which can bind to each other. At the critical temperature, the (un) zipping is unbiased and the two strands open and close as a zipper. The number of broken base pairs n(t) displays a subdiffusive motion characterized by a variance growing as < Dn(2)(t)> similar to t(alpha) with alpha < 1 at long times. Our theory provides an estimate of both the asymptotic anomalous exponent alpha and of the subleading correction term, which are both in excellent agreement with numerical simulations. The results indicate that the tension propagation theory captures the relevant features of the dynamics and shed some new insights on related polymer problems characterized by anomalous dynamical behavior.
Notes: [Sakaue, T.] Kyushu Univ, Dept Phys, Fukuoka 8190395, Japan. [Sakaue, T.] JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan. [Walter, J. -C.] Univ Montpellier, CNRS UM UMR5221, Lab Charles Coulomb, Pl Eugene Bataillon, F-34095 Montpellier 5, France. [Carlon, E.; Vanderzande, C.] Katholieke Univ Leuven, Inst Theoret Phys, Celestijnenlaan 200D, B-3001 Leuven, Belgium. [Vanderzande, C.] Hasselt Univ, Fac Sci, Agoralaan 1, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/24210
DOI: 10.1039/c7sm00395a
ISI #: 000400876600012
ISSN: 1744-683X
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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