title: Freezing and collapse of flexible polymers on regular lattices in three dimensions.
abstract: We analyze the crystallization and collapse transition of a simple model for flexible polymer chains on simple-cubic and face-centered-cubic lattices by means of sophisticated chain-growth methods. In contrast to the bond-fluctuation polymer model in certain parameter ranges, where these two conformational transitions were found to merge in the thermodynamic limit, we conclude from our results that the two transitions remain well separated in the limit of infinite chain lengths. The reason for this qualitatively distinct behavior is presumably due to the ultrashort attractive interaction range in the lattice models considered here.
authors.affiliation: Institut für Theoretische Physik, Universität Leipzig, Postfach 100 920, D-04009 Leipzig, Germany. thomas.vogel@itp.uni-leipzig.de
authors.forename: Thomas
authors.initials: T
authors.lastname: Vogel
authors.forename: Michael
authors.initials: M
authors.lastname: Bachmann
authors.forename: Wolfhard
authors.initials: W
authors.lastname: Janke