Non-invertible Symmetries and Confinement in 2d Adjoint QCD

Sahand Seifnashri (Stony Brook U. SCGP)

10-Feb-2021, 15:00-16:00 (3 years ago)

Abstract: Abstract: We will discuss the notion of "non-invertible symmetries" that generalize group-like symmetries in QFTs. Using these generalized symmetries we prove the deconfinement of the fundamental quark in 2d massless adjoint QCD. When the adjoint quark has a small mass the theory confines and the non-invertible symmetries are softly broken. We use them to analytically compute the tension of the confining strings. We will also consider the symmetric quartic fermion deformations that are protected by the non-invertible symmetries, thus violating the ordinary notion of naturalness.

HEP - theory

Audience: researchers in the topic

( slides )


SISSA HEP seminars

Series comments: Description: Research seminars on theoretical high energy physics

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Organizers: Francesco Benini*, Christian Copetti*
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