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Title: Unwinding Relaxation Dynamics of Polymers
Authors: Walter, J.-C. ×
Baiesi, M.
Barkema, G.T.
Carlon, Enrico #
Issue Date: 4-Feb-2013
Publisher: American Physical Society
Series Title: Physical Review Letters vol:110 issue:6
Article number: 068301
Abstract: The relaxation dynamics of a polymer wound around a fixed obstacle constitutes a fundamental instance of polymer with twist and torque, and it is also of relevance for DNA denaturation dynamics. We investigate it by simulations and Langevin equation analysis. The latter predicts a relaxation time scaling as a power of the polymer length times a logarithmic correction related to the equilibrium fluctuations of the winding angle. The numerical data support this result and show that at short times the winding angle decreases as a power law. This is also in agreement with the Langevin equation provided a winding-dependent friction is used, suggesting that such reduced description of the system captures the basic features of the problem.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

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