S-duality of boundary lines in $\mathcal{N}=4$ SYM theories and supersymmetric indices

Fuente: arXiv
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Main Authors: Hatsuda, Yasuyuki, Okazaki, Tadashi
Format: Preprint
Published: 2025
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author Hatsuda, Yasuyuki
Okazaki, Tadashi
author_facet Hatsuda, Yasuyuki
Okazaki, Tadashi
contents We analyze the supersymmetric defect indices of $\mathcal{N}=4$ super Yang Mills theories which are simultaneously decorated by the BPS line operators and the boundary conditions. We demonstrate that the two-point functions of the boundary 't Hooft lines of magnetic charges associated with the minuscule representations in the presence of the regular Nahm pole boundary conditions can be obtained by applying the Higgsing prescription to the half-indices of the Dirichlet boundary conditions. Accordingly, we find precise matching of the indices for pairs of the S-dual configurations with the Wilson lines and Neumann boundary conditions and those with the 't Hooft lines and the regular Nahm pole boundary conditions. Alternatively, we analytically compute the indices by means of the inner product of the Macdonald polynomials to find the exact closed-form expressions.
format Preprint
id arxiv_https___arxiv_org_abs_2505_14962
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle S-duality of boundary lines in $\mathcal{N}=4$ SYM theories and supersymmetric indices
Hatsuda, Yasuyuki
Okazaki, Tadashi
High Energy Physics - Theory
We analyze the supersymmetric defect indices of $\mathcal{N}=4$ super Yang Mills theories which are simultaneously decorated by the BPS line operators and the boundary conditions. We demonstrate that the two-point functions of the boundary 't Hooft lines of magnetic charges associated with the minuscule representations in the presence of the regular Nahm pole boundary conditions can be obtained by applying the Higgsing prescription to the half-indices of the Dirichlet boundary conditions. Accordingly, we find precise matching of the indices for pairs of the S-dual configurations with the Wilson lines and Neumann boundary conditions and those with the 't Hooft lines and the regular Nahm pole boundary conditions. Alternatively, we analytically compute the indices by means of the inner product of the Macdonald polynomials to find the exact closed-form expressions.
title S-duality of boundary lines in $\mathcal{N}=4$ SYM theories and supersymmetric indices
topic High Energy Physics - Theory
url https://arxiv.org/abs/2505.14962