Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The phase diagram of the massive Gross-Neveu model, revisited   The massive Gross-Neveu model is solved in the large N limit at finite
temperature and chemical potential. The phase diagram features a kink-antikink
crystal phase which was missed in previous works. Translated into the framework
of condensed matter physics our results generalize the bipolaron lattice in
non-degenerate conducting polymers to finite temperature.

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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
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The categories of this paper are: econ
37
The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: astro-ph