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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 | Publisher: | ROYAL SOC CHEMISTRY | Source: | 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. | Document URI: | http://hdl.handle.net/1942/24210 | ISSN: | 1744-683X | e-ISSN: | 1744-6848 | DOI: | 10.1039/c7sm00395a | ISI #: | 000400876600012 | Rights: | This journal is © The Royal Society of Chemistry 2017 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2018 |
Appears in Collections: | Research publications |
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c7sm00395a.pdf Restricted Access | Published version | 2.61 MB | Adobe PDF | View/Open Request a copy |
paper_TS.pdf | Peer-reviewed author version | 404.94 kB | Adobe PDF | View/Open |
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