Stretching semiflexible filaments with quenched disorder

Panayotis Benetatos; Eugene M. Terentjev

doi:10.1103/physreve.82.050802

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arXiv · 1006.3698

Stretching semiflexible filaments with quenched disorder

Panayotis Benetatos·Eugene M. Terentjev

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Abstract

We study the effect of quenched randomness in the arc-length dependent spontaneous curvature of a wormlike chain under tension. In the weakly bending approximation in two dimensions, we obtain analytic results for the force-elongation curve and the width of transverse fluctuations. We compare quenched and annealed disorder and conclude that the former cannot always be reduced to a simple change in the stiffness of the pure system. We also discuss the effect of a random transverse force on the stretching response of a wormlike chain without spontaneous curvature.

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Panayotis Benetatos, Eugene M. Terentjev. 2010-06-18. Stretching semiflexible filaments with quenched disorder. https://doi.org/10.1103/physreve.82.050802

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