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DY: Dynamik und Statistische Physik

DY 46: Poster

DY 46.85: Poster

Donnerstag, 11. März 2004, 16:00–18:00, Poster D

Phasetransitions in Quantum fluids: PIMC - Studies — •Guido Günther and Peter Nielaba — Lehrstuhl für Theoretische Physik, Fachbereich Physik, Universität Konstanz, D-78457 Konstanz

Exploiting path integral Monte Carlo methods we studied the behavior of the fluid phase of quantum mechanical hard sphere- and disk- systems.

We focused on the superfluid phase transition of Bose systems analyzing, among other quantities, the superfluid fraction which in periodic boundary conditions is related to the winding number of the Trotter-chains [0].

[0] E.L. Pollock, D.M. Ceperley; Phys. Rev. B 36, 8343 (1987)