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arXiv · 1004.0510

Dynamical mean field solution of the Bose-Hubbard model

Peter Anders·Emanuel Gull·Lode Pollet·Matthias Troyer·Philipp Werner
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Abstract

We present the effective action and self-consistency equations for the bosonic dynamical mean field (B-DMFT) approximation to the bosonic Hubbard model and show that it provides remarkably accurate phase diagrams and correlation functions. To solve the bosonic dynamical mean field equations we use a continuous-time Monte Carlo method for bosonic impurity models based on a diagrammatic expansion in the hybridization and condensate coupling. This method is readily generalized to bosonic mixtures, spinful bosons, and Bose-Fermi mixtures.

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Peter Anders, Emanuel Gull, Lode Pollet, Matthias Troyer, Philipp Werner. 2010-09-09. Dynamical mean field solution of the Bose-Hubbard model. https://doi.org/10.1103/physrevlett.105.096402

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