3 papers
hep-th2025
SymTFT, Protected Gaplessness, and Spontaneous Breaking of Non-invertible Symmetries
Michele Del Zotto, Azeem Hasan, Elias Riedel GÃ¥rding
In recent years we have learned that several four-dimensional field theories can manifest non-invertible zero-form symmetries generalizing the Kramers-Wannier duality defect of the…
hep-th2024
Defect groups of class theories from the Coulomb branch
Elias Riedel GÃ¥rding
We study the global forms of class 4d theories by deriving their defect groups (charges of line operators up to screening by local operator…
math-ph2024
Simons Lectures on Categorical Symmetries
Davi Costa, Clay Córdova, Michele Del Zotto +10
Global Categorical Symmetries are a powerful new tool for analyzing quantum field theories. This volume compiles lecture notes from the 2022 and 2023 summer schools on Global Categ…