Journal article

Poland-Scheraga models and the DNA denaturation transition

C Richard, AJ Guttmann

JOURNAL OF STATISTICAL PHYSICS | SPRINGER | Published : 2004

Abstract

Poland-Scheraga models were introduced to describe the DNA denaturation transition. We give a rigorous and refined discussion of a family of these models. We derive possible scaling functions in the neighborhood of the phase transition point and review common examples. We introduce a self-avoiding Poland-Scheraga model displaying a first order phase transition in two and three dimensions. We also discuss exactly solvable directed examples. This complements recent suggestions as to how the Poland-Scheraga class might be extended in order to display a first order transition, which is observed experimentally.

University of Melbourne Researchers