title: Topological origin of the phase transition in a model of DNA denaturation.
abstract: The hypothesis that phase transitions originate from some topological change of the critical level hypersurface of the potential energy receives direct evident support by our study of the Bishop-Peyrard model of DNA thermal denaturation.
authors.affiliation: Istituto Nazionale di Fisica Nucleare (INFN) and International School for Advanced Studies (SISSA), via Beirut 2-4, I-34014 Trieste, Italy. grinza@sissa.it
authors.forename: Paolo
authors.initials: P
authors.lastname: Grinza
authors.forename: Alessandro
authors.initials: A
authors.lastname: Mossa
mesh_terms: D004247:DNA / Q000737:chemistry*; D008954:Models, Biological; D013499:Surface Properties; D013816:Thermodynamics
chemical_list: D004247:DNA