IPM Calendar 
Tuesday 26 January 2021   Today  
Events for day: Thursday 08 October 2020    
           16:00 - 17:00     IPM holography virtual seminar
Non-invertible Symmetries and Confinement in 2d Adjoint QCD


Abstract: I will describe the notion of "non-invertible symmetries" that generalize group-like symmetries in QFTs. We show that massless 2d adjoint QCD is "holographically" dual to a 3d CS theory and thus admits an exponential number of such generalized symmetries. Using them we prove the deconfinement of the fundamental quark and compute the tension of the confining strings in the massive theory. We will also consider the symmetric quartic fermion deformations that are protected by the non-invertible symmetries, thus violating the ordinary notion of naturalness.