Propagation and Relaxation of Tension in Stiff Polymers

Details Propagation and Relaxation of Tension in Stiff Polymers Propagation and Relaxation of Tension in Stiff Polymers

2004-05-17

arxiv.org/abs/cond-mat/0405367v3

Phys. Rev. Lett. 94, 077804 (2005)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.94.077804

We present a unified theory for the longitudinal dynamic response of a stiff polymer in solution to various external perturbations (mechanical excitations, hydrodynamic flows, electrical fields, temperature quenches ...) that can be represented as sudden changes of ambient/boundary conditions. The theory relies on a comprehensive analysis of the non--equilibrium propagation and relaxation of backbone stresses in a wormlike chain. We recover and substantially extend previous results based on heuristic arguments. Intriguing new experimental implications are pointed out.

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