Stretching an heteropolymer
Statistical Mechanics
2009-10-30 v1
Abstract
We study the influence of some quenched disorder in the sequence of monomers on the entropic elasticity of long polymeric chains. Starting from the Kratky-Porod model, we show numerically that some randomness in the favoured angles between successive segments induces a change in the elongation versus force characteristics, and this change can be well described by a simple renormalisation of the elastic constant. The effective coupling constant is computed by an analytic study of the low force regime.
Keywords
Cite
@article{arxiv.cond-mat/9711051,
title = {Stretching an heteropolymer},
author = {D. Bensimon and D. Dohmi and M. Mezard},
journal= {arXiv preprint arXiv:cond-mat/9711051},
year = {2009}
}
Comments
Latex, 7 pages, 3 postscript figure