Harmonically confined, semiflexible polymer in a channel: response to a stretching force and spatial distribution of the endpoints

Details Harmonically confined, semiflexible polymer in a channel: response to a stretching force and spatial distribution of the endpoints Harmonically confined, semiflexible polymer in a channel: response to a stretching force and spatial distribution of the endpoints

2011-07-16

arxiv.org/abs/1107.3244v1

Physics

Condensed Matter

Soft Condensed Matter

14 pages including figures

Scientific paper

We consider an inextensible, semiflexible polymer or worm-like chain which is confined in the transverse direction by a parabolic potential and subject to a longitudinal force at the ends, so that the polymer is stretched out and backfolding is negligible. Simple analytic expressions for the partition function, valid in this regime, are obtained for chains of arbitrary length with a variety of boundary conditions at the ends. The spatial distribution of the end points or radial distribution function is also analyzed.

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