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Université de Fribourg

Efficient implementation of the continuous-time hybridization expansion quantum impurity solver

Hafermann, Hartmut ; Werner, Philipp ; Gull, Emanuel

In: Computer Physics Communications, 2013, vol. 184, no. 4, p. 1280–1286

Strongly correlated quantum impurity problems appear in a wide variety of contexts ranging from nanoscience and surface physics to material science and the theory of strongly correlated lattice models, where they appear as auxiliary systems within dynamical mean-field theory. Accurate and unbiased solutions must usually be obtained numerically, and continuous-time quantum Monte Carlo algorithms,...