Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical Coupling for Two-dimensional $\phi^4$ Theory in Discretized
  Light-Cone Quantization   We solve for the critical coupling in the symmetric phase of two-dimensional
$\phi^4$ field theory using Discretized Light-Cone Quantization. We adopt
periodic boundary conditions, neglect the zero mode, and obtain a critical
coupling consistent with the critical coupling reported using conformal
truncation in light-front quantization. We find a 17% dfference from the
critical coupling reported with light-front quantization in a symmetric
polynomial basis.

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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex