Regensburg 2010 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 35: Posters: Statistical Physics, Evolution, and Networks
BP 35.8: Poster
Donnerstag, 25. März 2010, 17:15–20:00, Poster B2
Thermodynamics of polymers anchored to fluctuating tethered membranes — •Steffen Karalus1,2, Wolfhard Janke1, and Michael Bachmann2 — 1Institut für Theoretische Physik, Universität Leipzig, Germany — 2Soft Matter Systems Research Group, Institut für Festkörperforschung (IFF-2), Forschungszentrum Jülich, Germany
By means of extensive Monte Carlo simulations we study a coarse-grained model for a bead-and-spring polymer anchored to a two-dimensional tethered (polymerized) membrane embedded into three-dimensional space [1]. Our model includes interactions within the polymer and the membrane as well as an attractive polymer-membrane potential. In order to identify structural transitions, we investigate fluctuations of thermodynamic quantities in dependence of the polymer-membrane interaction strength. Applied methods include generalized ensemble methods such as multicanonical simulations and parallel tempering.
[1] H. Popova and A. Milchev, J. Chem. Phys. 127, 194903 (2007); J. Chem. Phys. 129, 215103 (2008)