Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbative Instabilities on the Non-Commutative Torus, Morita Duality
  and Twisted Boundary Conditions   We study one-loop corrections in scalar and gauge field theories on the
non-commutative torus. For rational theta, Morita equivalence allows these
theories to be reformulated in terms of ordinary theories on a commutative
torus with twisted boundary conditions. UV/IR mixing does not lead to
singularities, however there can be large corrections. In particular, gauge
theories show tachyonic instabilities for some of the modes. We discuss their
relevance to spontaneous Z_N x Z_N symmetry breaking in the Morita dual SU(N)
theory due to electric flux condensation.

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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs