01:13:25
published on March 13, 2026
Spurion Analysis for a Class of Selection Rules Without Group Actions
By Ling-Xiao Xu
Appears in collection : 2024 IHES Summer School – Symmetries and Anomalies : a Modern Take
I will review aspects of non-invertible symmetries and their relations to anomalies in lattice and continuum field theories. Examples include the Kramers-Wannier symmetry in the quantum Ising lattice model, and the non-invertible chiral symmetry in the 3+1 QED.