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A recently developed continuous time solver based on an expansion inhybridization about an exactly solved local limit is reformulated in a mannerappropriate for general classes of quantum impurity models including spinexchange and pair hopping terms. The utility of the approach is demonstratedvia applications to the dynamical mean field theory of the Kondo lattice andtwo-orbital models. The algorithm can handle low temperatures and strongcouplings without encountering a sign problem.Comment: Published versio

Hybridization expansion impurity solver: General formulation and application to Kondo lattice and two-orbital models