Lectures on generalized symmetries

L Bhardwaj, LE Bottini, L Fraser-Taliente, L Gladden… - Physics Reports, 2024 - Elsevier
These are a set of lecture notes on generalized global symmetries in quantum field theory.
The focus is on invertible symmetries with a few comments regarding non-invertible …

Symmetries and strings of adjoint QCD2

Z Komargodski, K Ohmori, K Roumpedakis… - Journal of High Energy …, 2021 - Springer
A bstract We revisit the symmetries of massless two-dimensional adjoint QCD with gauge
group SU (N). The dynamics is not sufficiently constrained by the ordinary symmetries and …

Anomalies in the space of coupling constants and their dynamical applications I

C Cordova, D Freed, HT Lam, N Seiberg - SciPost Physics, 2020 - scipost.org
It is customary to couple a quantum system to external classical fields. One application is to
couple the global symmetries of the system (including the Poincar\'{e} symmetry) to …

Generalized global symmetries of T [M] theories. Part I

S Gukov, PS Hsin, D Pei - Journal of High Energy Physics, 2021 - Springer
A bstract We study reductions of 6d theories on a d-dimensional manifold M d, focusing on
the interplay between symmetries, anomalies, and dynamics of the resulting (6− d) …

Anomalies of generalized symmetries from solitonic defects

L Bhardwaj, M Bullimore, AEV Ferrari… - SciPost Physics, 2024 - scipost.org
We propose the general idea that't Hooft anomalies of generalized global symmetries can
be understood in terms of the properties of solitonic defects, which generically are non …

The global form of flavor symmetries and 2-group symmetries in 5d SCFTs

F Apruzzi, S Schäfer-Nameki, L Bhardwaj, J Oh - SciPost Physics, 2022 - scipost.org
group symmetries arise when 1-form symmetries and 0-form symmetries of a theory mix with
each other under group multiplication. We discover the existence of 2-group symmetries in …

Constraining momentum space correlators using slightly broken higher spin symmetry

S Jain, RR John, V Malvimat - Journal of High Energy Physics, 2021 - Springer
A bstract In this work, building up on [1] we present momentum space Ward identities related
to broken higher spin symmetry as an alternate approach to computing correlators of …

Lorentz symmetry fractionalization and dualities in (2+ 1) d

PS Hsin, SH Shao - SciPost Physics, 2020 - scipost.org
We discuss symmetry fractionalization of the Lorentz group in (2+ 1) d non-spin quantum
field theory (QFT), and its implications for dualities. We prove that two inequivalent non-spin …

Symmetries of abelian Chern-Simons theories and arithmetic

D Delmastro, J Gomis - Journal of High Energy Physics, 2021 - Springer
A bstract We determine the unitary and anti-unitary Lagrangian and quantum symmetries of
arbitrary abelian Chern-Simons theories. The symmetries depend sensitively on the …

3d exceptional gauge theories and boundary confinement

T Okazaki, DJ Smith - Journal of High Energy Physics, 2023 - Springer
A bstract We find boundary confining dualities of 3d\(\mathcal {N}\)= 2 supersymmetric
gauge theories with exceptional gauge groups. The half-indices which enumerate the …