Noise effects in polymer dynamics
Statistical Mechanics
2015-05-13 v1
Abstract
The study of the noise induced effects on the dynamics of a chain molecule crossing a potential barrier, in the presence of a metastable state, is presented. A two-dimensional stochastic version of the Rouse model for a flexible polymer has been adopted to mimic the molecular dynamics and to take into account the interactions between adjacent monomers. We obtain a nonmonotonic behavior of the mean first passage time and its standard deviation, of the polymer centre of inertia, with the noise intensity. These findings reveal a noise induced effect on the mean crossing time. The role of the polymer length is also investigated.
Keywords
Cite
@article{arxiv.0810.1582,
title = {Noise effects in polymer dynamics},
author = {N. Pizzolato and A. Fiasconaro and B. Spagnolo},
journal= {arXiv preprint arXiv:0810.1582},
year = {2015}
}
Comments
6 pages, 5 figures, to appear in Intern. Journ. of Bifurcation and Chaos, 2008