Regensburg 2010 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 20: Phase Transitions and Critical Phenomena I

DY 20.1: Vortrag

Mittwoch, 24. März 2010, 14:30–14:45, H47

Monte Carlo simulations of the 3d-Ising model in cylindrical geometry — •Dorothea Wilms, Peter Virnau, and Kurt Binder — Johannes Gutenberg-Universität, Mainz

The three dimensional Ising model in cylindrical geometry can be regarded as a model system for the study of nanopores. As a quasi one dimensional system, it also exhibits a rather interesting "phase behavior": At low temperatures, the tube is either filled with liquid or gas and the densities are similar to those in the bulk. When we approach a "pseudo-critical point" (below the critical point of the bulk) several interfaces appear and the tube contains both liquid and gas phases. As expected, the transition depends on the size of the tube and occurs at lower temperatures for larger cylinders.