Regensburg 2013 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 33: Poster II
DY 33.46: Poster
Donnerstag, 14. März 2013, 17:00–19:00, Poster C
Multicanonical analysis of the gonihedric Ising model — •Marco Müller1, Desmond A. Johnston2, and Wolfhard Janke1 — 1Institut für Theoretische Physik, Universität Leipzig, Germany — 2Math. Dept., Heriot-Watt University, Edinburgh, United Kingdom
The gonihedric Ising model originates from catching basic properties of fluctuating random surfaces in a bosonic string theory. Formulated as a lattice model of interacting classical spins it can be investigated by means of the multicanonical Monte Carlo algorithm to resolve open questions on the first-order phase transition. The transition temperature has been determined for the model and a dual representation; also the interface tension has been measured for both models and appears to be quite strong.