Dual boson diagrammatic Monte Carlo approach applied to the extended Hubbard model

  title={Dual boson diagrammatic Monte Carlo approach applied to the extended Hubbard model},
  author={Matteo Vandelli and Viktor Harkov and Evgeny A. Stepanov and Jan Gukelberger and Evgeny Kozik and {\'A}ngel Rubio and Alexander I. Lichtenstein},
  journal={Physical Review B},
In this work we introduce the Dual Boson Diagrammatic Monte Carlo technique for strongly interacting electronic systems. This method combines the strength of dynamical mean-filed theory for non-perturbative description of local correlations with the systematic account of non-local corrections in the Dual Boson theory by the diagrammatic Monte Carlo approach. It allows us to get a numerically exact solution of the dual boson theory at the two-particle local vertex level for the extended Hubbard… 

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