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Tensor network formulation of the massless Schwinger model

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 نشر من قبل Judah Unmuth-Yockey
 تاريخ النشر 2019
  مجال البحث فيزياء
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We construct a tensor network representation of the partition function for the massless Schwinger model on a two dimensional lattice using staggered fermions. The tensor network representation allows us to include a topological term. Using a particular implementation of the tensor renormalization group (HOTRG) we calculate the phase diagram of the theory. For a range of values of the coupling to the topological term $theta$ and the gauge coupling $beta$ we compare with results from hybrid Monte Carlo when possible and find good agreement.

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