Regensburg 2004 – wissenschaftliches Programm
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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)