Abstract
We compute the Lens space index for 4d supersymmetric gauge theories involving symplectic gauge groups. This index can distinguish between different gauge groups from a given algebra and it matches across theories related by supersymmetric dualities. We provide explicit calculations for \( \mathcal{N} \) = 4 SYM and for classes of \( \mathcal{N} \) = 2 and \( \mathcal{N} \) = 1 Lagrangian quivers related by S-duality. In these cases the index matches across the S-dual phases, while models in different S-duality orbits have a different Lens index. We provide analogous computations for a 4d \( \mathcal{N} \) = 1 toric quiver gauge theory corresponding to a ℤ7 orbifold of ℂ3. This SU(n)7 gauge theory becomes interesting in the case of n = 2 because it is conformally dual to other two models, with symplectic and unitary gauge groups, bifundamentals and antisymmetric tensors. We explicitly check this triality at the level of the Lens space index.
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Acknowledgments
This work has been supported in part by the Italian Ministero dell’Istruzione, Università e Ricerca (MIUR), in part by Istituto Nazionale di Fisica Nucleare (INFN) through the “Gauge Theories, Strings, Supergravity” (GSS) research project and in part by MIUR-PRIN contract 2017CC72MK-003.
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Amariti, A., Rota, S. Symplectic gauge group on the Lens space. J. High Energ. Phys. 2023, 137 (2023). https://doi.org/10.1007/JHEP08(2023)137
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DOI: https://doi.org/10.1007/JHEP08(2023)137