Argyres-Douglas Avatars of Coulomb Branch Physics

Abstract

We study ultraviolet (UV) incarnations of deep infrared (IR) physics on the Coulomb branch of the simplest interacting 4D $\mathcal{N}=2$ superconformal field theory: the minimal Argyres-Douglas (MAD) theory. One of the most basic properties of the Coulomb branch is an emergent infinite-dimensional higher-spin symmetry. While the MAD theory is interacting and therefore does not have such a symmetry, we find UV operators that encode the emergent complex higher-spin symmetry on the Coulomb branch. Moreover, we show that cousins of these UV operators give rise to cousins of the IR higher-spin multiplets. In terms of superconformal representation theory, we are led to a conjecture on the exact spectrum of ${\bar{\mathcal{C}}}_{R,r(j,\bar{j})}$ multiplets in the MAD theory for all $R$, $r$, $j$, and $\bar{j}$ satisfying $R+\bar{j}-j+1=0$, thereby making progress towards a full characterization of the protected spectrum. Along the way, we give a geometrical interpretation of these operators and include them in an extension of the Coulomb branch / $\mathcal{N}=2$ chiral operator correspondence.

arXiv comment36 pages; 3 figures; 2 tables

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Cited by in corpus (1)

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