A semi-flexible attracting segment model of two-dimensional polymer collapse
J Krawczyk, AL Owczarek, T Prellberg
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | ELSEVIER SCIENCE BV | Published : 2010
Recently it has been shown that a two-dimensional model of self-attracting polymers based on attracting segments displays two phase transitions, a θ-like collapse between swollen polymers and a globular state and another between the globular state and a polymer crystal. On the other hand, the canonical model based on attracting monomers on lattice sites displays only one: the standard tricritical θ collapse transition. Here we consider the attracting segment model with the addition of stiffness and show that it displays the same phases as the canonical model. © 2009 Elsevier B.V. All rights reserved.
Financial support from the Australian Research Council via its support for the Centre of Excellence for Mathematics and Statistics of Complex Systems is gratefully acknowledged by the authors A L Owczarek thanks the School of Mathematical Sciences, Queen Mary, University of London for hospitality.