Regensburg 2010 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 27: CE: Poster Session

TT 27.50: Poster

Mittwoch, 24. März 2010, 14:00–18:00, Poster D1

Thermodynamic properties of the Hubbard model — •Patrick Haase¹, Sebastian Fuchs¹, Mark Jarrell², and Thomas Pruschke¹ — ¹Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37075 Göttingen, Germany — ²Louisiana State Universtity, Baton Rouge, LA 70803, USA

We calculate the temperature dependence of the internal energy of the Hubbard model in the dynamical mean field approximation using continuous-time quantum Monte Carlo simulations. We fit the energy data with the density of states of a non-interacting system. With this density of states we are able to calculate thermodynamic properties like the entropy, which is not directly accessible by Monte Carlo simulations.