Tension dynamics and viscoelasticity of extensible wormlike chains
arXiv:0907.1244 · doi:10.1103/PhysRevE.80.040801
Abstract
The dynamic response of prestressed semiflexible biopolymers is characterized by the propagation and relaxation of tension, which arises due to the near inextensibility of a stiff backbone. It is coupled to the dynamics of contour length stored in thermal undulations, but also to the local relaxation of elongational strain. We present a systematic theory of tension dynamics for stiff yet extensible wormlike chains. Our results show that even moderate prestress gives rise to distinct Rouse-like extensibility signatures in the high-frequency viscoelastic response.
4 pages, 1 figure; corrected typos
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