Elasticity of semi-flexible polymers

Details Elasticity of semi-flexible polymers Elasticity of semi-flexible polymers

2002-03-24

arxiv.org/abs/cond-mat/0203483v2

Phys. Rev. E, Vol.66, 050801(R), (2002

Physics

Condensed Matter

Soft Condensed Matter

five pages revtex five figures, slightly improved version with recent references added

Scientific paper

10.1103/PhysRevE.66.050801

We present a numerical solution of the Worm-Like Chain (WLC) model for semi-flexible polymers. We display graphs for the end-to-end distance distribution and the force-extension relation expected from the model. We predict the expected level of fluctuations around the mean value in force-extension curves. Our treatment analyses the entire range of polymer lengths and reproduces interesting qualitative features seen in recent computer simulations for polymers of intermediate length. These results can be tested against experiments on single molecules. This study is relevant to mechanical properties of biological molecules.

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