Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current Algebra Approach to 2d Chiral Metals   We reinterpret Balents and Fisher's free 2d chiral metal [Phys. Rev. Lett.
76, 2782 (1996)] as a chiral $U(N)$ Wess-Zumino-Witten model at level $k = 1$.
Here, the $U(N)$ symmetry relates the $N \rightarrow \infty$ low-energy
excitations about the chiral Fermi surface. We obtain non-Fermi liquid
generalizations of the free chiral metal that maintain the $U(N)$ symmetry of
the $k=1$ theory by taking the level to be a positive integer $k>1$. We
calculate two-point correlation functions of the $U(1)$ number density and
current operators in these theories for general $k$. We find $k$ to provide an
overall rescaling of the amplitude of these correlation functions. This
construction illustrates the ersatz Fermi liquid proposal of Else, Thorgren,
and Senthil [Phys. Rev. X 11, 021005 (2021)].

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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ph