Continuous-time auxiliary field Monte Carlo for quantum impurity models
classification
❄️ cond-mat.str-el
keywords
impuritycarlocontinuous-timefieldmethodmodelsmontequantum
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We present a continuous-time Monte Carlo method for quantum impurity models, which combines a weak-coupling expansion with an auxiliary-field decomposition. The method is considerably more efficient than Hirsch-Fye and free of time discretization errors, and is particularly useful as impurity solver in large cluster dynamical mean field theory (DMFT) calculations.
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