Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal Deformations   QFTs with local topological operators feature unusual sectors called
"universes," which are separated by infinite-tension domain walls. We show that
such systems have relevant deformations with exactly-calculable effects. These
deformations allow one to dial the vacuum energy densities of the universes. We
describe applications of these deformations to confinement in 2d gauge
theories, as well as a curious violation of the effective field theory
naturalness principle.

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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio
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The categories of this paper are: eess