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Continuous-time auxiliary field Monte Carlo for quantum impurity models

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 نشر من قبل Emanuel Gull
 تاريخ النشر 2008
  مجال البحث فيزياء
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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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