Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: N=2 S-duality Revisited   Using the chiral algebra bootstrap, we revisit the simplest Argyres-Douglas
(AD) generalization of Argyres-Seiberg S-duality. We argue that the exotic AD
superconformal field theory (SCFT), $T_{3,{3\over2}}$, emerging in this duality
splits into a free piece and an interacting piece, T_X, even though this
factorization seems invisible in the Seiberg-Witten (SW) curve derived from the
corresponding M5-brane construction. Without a Lagrangian, an associated
topological field theory, a BPS spectrum, or even an SW curve, we nonetheless
obtain exact information about T_X by bootstrapping its chiral algebra,
chi(T_X), and finding the corresponding vacuum character in terms of Affine
Kac-Moody characters. By a standard 4D/2D correspondence, this result gives us
the Schur index for T_X and, by studying this quantity in the limit of small
S^1, we make contact with a proposed S^1 reduction. Along the way, we discuss
various properties of T_X: as an N=1 theory, it has flavor symmetry
SU(3)XSU(2)XU(1), the central charge of chi(T_X) matches the central charge of
the bc ghosts in bosonic string theory, and its global SU(2) symmetry has a
Witten anomaly. This anomaly does not prevent us from building conformal
manifolds out of arbitrary numbers of T_X theories (giving us a surprisingly
close AD relative of Gaiotto's T_N theories), but it does lead to some open
questions in the context of the chiral algebra / 4D N=2 SCFT correspondence.

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The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: cs
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The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol