Dresden 2009 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 12: Poster I

DY 12.36: Poster

Dienstag, 24. März 2009, 14:30–16:30, P1A

Flow equation analysis of the strong interaction Hubbard model — •Alexander Hoffmann and Stefan Kehrein — Physics Department, ASC, and CeNS, Ludwig-Maximilians-Universität, Theresienstraße 37, 80333 Munich, Germany

We employ unitary transformations to diagonalize the Hubbard model with strong Coulomb repulsion. The diagonal form permits us to investigate the equilibrium dynamics in the Mott insulating regime in a t/U-expansion. As an outlook, it can also serve as the basis for studying the non-equilibrium dynamics after a sudden interaction quench.

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