A freely relaxing polymer remembers how it was straightened

The relaxation of initially straight semiflexible polymers has been discussed mainly with respect to the longest relaxation time. The biologically relevant non-equilibrium dynamics on shorter times is comparatively poorly understood, partly because "initially straight" can be realized in m...

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Published inarXiv.org
Main Authors Obermayer, B, Mobius, W, Hallatschek, O, Frey, E, Kroy, K
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.12.2008
Subjects
Coils
Physics - Soft Condensed Matter
Quantitative Biology - Biomolecules
Relaxation time
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Summary:The relaxation of initially straight semiflexible polymers has been discussed mainly with respect to the longest relaxation time. The biologically relevant non-equilibrium dynamics on shorter times is comparatively poorly understood, partly because "initially straight" can be realized in manifold ways. Combining Brownian dynamics simulations and systematic theory, we demonstrate how different experimental preparations give rise to specific short-time and universal long-time dynamics. We also discuss boundary effects and the onset of the stretch--coil transition.
Bibliography:LMU-ASC 62/08
ISSN:2331-8422
DOI:10.48550/arxiv.0812.2794