Dresden 2017 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 23: Posters - Statistical Physics of Biological Systems

BP 23.7: Poster

Dienstag, 21. März 2017, 14:00–16:00, P1A

From flexible to stiff: a homopolymer model state diagram and its morphologies — •Benno Werlich and Wolfgang Paul — Institut für Physik, MLU Halle-Wittenberg, Germany

A hard-sphere homopolymer model with attractive interaction potential can be varied in its stiffness by modification the bondlength. According to this variation, thermodynamic functions and geometric observables undergo changes which are presented in a state-diagram for a chain length of N=40. The morphologies, e.g. in the low temperature range, show peculiar changes in monomer ordering towards stiffer chains. We use a Stochastic-Approximation Monte-Carlo (SAMC) method for our off-lattice model simulations and generate an estimation to the microcanonical entropy S(E). This entropy is our statistical weight for canonical production runs.