paper

Interface line operators in SYM theories and supersymmetric indices

arXiv:2510.25168 · doi:10.1007/JHEP02(2026)104

Abstract

We study configurations of two super Yang-Mills theories of unitary gauge groups connected by the BPS interfaces involving line operators. We find strong evidence of S-duality of the configurations as precise matching of the line defect half-indices which enumerate the BPS local operators at the junctions of the interfaces and line operators. The interface line defect half-indices are expressible as intriguing closed-form formulae involving the -binomial coefficients and the principal specializations of the Schur functions.

48 pages, 1 figure, v2: published version in JHEP

References in corpus (39)