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TT: Fachverband Tiefe Temperaturen
TT 3: Correlated Electrons: Low-Dimensional Systems - Models 1
TT 3.9: Talk
Monday, March 11, 2013, 11:45–12:00, H9
Thermodynamics of the Two-Dimensional Hubbard Model — •James LeBlanc1 and Emanuel Gull2 — 1Max Planck Institute For the Physics of Complex Systems, Dresden Germany — 2University of Michigan, Ann Arbor MI
The application of a numerically exact continuous time impurity solver with the DCA dynamical mean field theory has allowed us to study the thermodynamics of the two-dimensional Hubbard model for finite, but large cluster sizes. Variation in cluster size, upwards of 50-sites, allows for extrapolation to the thermodynamic limit. We present results relevant to cold gas systems, such as entropy, double occupancy and nearest-neighbour spin correlations as well as discuss the implications of these calculations on pseudogap physics of the High-Tc Cuprate superconductors away from half filling.