Kiel 2011 – scientific programme
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P: Fachverband Plasmaphysik
P 18: Poster: Theorie/Simulation dichter und stark gekoppelter Plasmen
P 18.21: Poster
Wednesday, March 30, 2011, 16:30–18:30, Foyer
Configuration path integral Monte Carlo simulation of correlated fermions — •Tim Schoof1, Alexej Filinov1, Michael Bonitz1, and James W. Dufty2 — 1Institut für Theoretische Physik und Astrophysik, Leibnitzstraße 15, 24098 Kiel — 2Physics Department, University of Florida, Gainesville
We develop a new path integral Monte Carlo approach which is formulated in occupation number representation. The method is applied to strongly correlated fermions in a trap [1]. Formally exact results are obtained by a transition from discrete to continuous imaginary time representation [2]. The efficiency of the method (fermion sign problem) is investigated for a broad range of temperatures, coupling parameters and particle numbers and compared to standard path integral Monte Carlo methods.
[1] T. Schoof, A. Filinov, M. Bonitz and J.W. Dufty to be published
[2] N. V. Prokof'ev, B. V. Svistunov, and I. S. Tupitsyn, JETP Lett. 64, 911 (1996)