

46:18
published on December 3, 2024
Computational Complexity in Column Sums of Symmetric Group Character Tables and Counting of Surfaces
By Joseph Ben Geloun
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.