Dual Boundary Conditions in 3d SCFT's

Abstract

We propose matching pairs of half-BPS boundary conditions related by IR dualities of 3d $\mathcal{N}=2$ gauge theories. From these matching pairs we construct duality interfaces. We test our proposals by anomaly matching and the computation of supersymmetric indices. Examples include basic abelian dualities, level-rank dualities, and Aharony dualities.

99 pages, 3 figures. v2: minor edits, appendix on Weyl-Kac formula added

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