Sequence randomness and polymer collapse transitions
软凝聚态物质
2009-10-31 v2 无序系统与神经网络
摘要
Contrary to expectations based on Harris' criterion, chain disorder with frustration can modify the universality class of scaling at the theta transition of heteropolymers. This is shown for a model with random two-body potentials in 2D on the basis of exact enumeration and accurate Monte Carlo results. When frustration grows beyond a certain finite threshold, the temperature below which disorder becomes relevant coincides with the theta one and scaling exponents definitely start deviating from those valid for homopolymers.
引用
@article{arxiv.cond-mat/9901182,
title = {Sequence randomness and polymer collapse transitions},
author = {Pietro Monari and Attilio L. Stella and Carlo Vanderzande and Enzo Orlandini},
journal= {arXiv preprint arXiv:cond-mat/9901182},
year = {2009}
}
备注
4 pages, 4 eps figures