Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tensor network formulation of the massless Schwinger model   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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The categories of this paper are: stat
32
The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: q-bio
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol