Continuous-time Monte Carlo methods for quantum impurity models

  title={Continuous-time Monte Carlo methods for quantum impurity models},
  author={Emanuel Gull and Andrew J. Millis and Alexander I. Lichtenstein and Alexey N. Rubtsov and Matthias Troyer and Philipp Werner},
  journal={Reviews of Modern Physics},
Quantum impurity models describe an atom or molecule embedded in a host material with which it can exchange electrons. They are basic to nanoscience as representations of quantum dots and molecular conductors and play an increasingly important role in the theory of "correlated electron" materials as auxiliary problems whose solution gives the "dynamical mean field" approximation to the self energy and local correlation functions. These applications require a method of solution which provides… 

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