DOLGUSHEV, Maxim; GUÉRIN, Thomas; BLUMEN, Alexander; BENICHOU, Olivier; VOITURIEZ, Raphaël

doi:10.1063/1.4885445

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DOLGUSHEV, Maxim
Theoretical Polymer Physics

GUÉRIN, Thomas
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire de Physique Théorique de la Matière Condensée [LPTMC]

BLUMEN, Alexander
Theoretical Polymer Physics

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Ce document a été publié dans

Journal of Chemical Physics. 2014-07-07, vol. 141, n° 1, p. 014901 (1-13)

American Institute of Physics

Résumé en anglais

Semiflexible polymer rings whose bonds obey both angular and dihedral restrictions [M. Dolgushev and A. Blumen, J. Chem. Phys.138, 204902 (2013)], are treated under exact closure constraints. This allows us to obtain semianalytic results for their dynamics, based on sets of Langevin equations. The dihedral restrictions clearly manifest themselves in the behavior of the mean-square monomer displacement. The determination of the equilibrium ring conformations shows that the dihedral constraints influence the ring curvature, leading to compact folded structures. The method for imposing such constraints in Gaussian systems is very general and it allows to account for heterogeneous (site-dependent) restrictions. We show it by considering rings in which one site differs from the others.< Réduire

DOI

http://dx.doi.org/10.1063/1.4885445

Projet Européen

First-passage times and optimization of target search strategies
Statistical Physics in Diverse Realisations

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798