Jan 17 – 19, 2024
Porto - Portugal
Europe/Lisbon timezone

Disconnected gauge groups in the infrared

Jan 18, 2024, 11:30 AM
Porto - Portugal

Porto - Portugal

Faculdade de Ciências da Universidade do Porto Rua do Campo Alegre Porto - Porto - Portugal


Guillermo Arias Tamargo (Imperial College London)


Gauging a discrete 0-form symmetry of a QFT is a procedure that changes the global form of the gauge group but not its perturbative dynamics. In this talk, we will discuss the Seiberg-Witten solution of theories resulting from the gauging of charge conjugation in 4d N = 2 SQCD with SU(N) gauge group. The basic idea is to identify the Z_2 action at the level of the SW curve and perform the quotient, and it should also be applicable to non-lagrangian theories. We study dynamical aspects of these theories such as their moduli space singularities and the corresponding physics; in particular, we explore the complex structure singularity arising from the quotient procedure. Time permitting, I'll also discuss some implications of our work in regards to three problems: the geometric classification of 4d SCFTs, the study of non-invertible symmetries from the SW geometry, and the String Theory engineering of theories with disconnected gauge groups.

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