Global Anomalies on the Hilbert Space

02/17/2021 10:30 am - 12:00 pm

CMSA-Quantum-Matter-in-Mathematics-and-Physics-02.17.21Speaker:  Jaume Gomis (Perimeter PI)

Title: Global Anomalies on the Hilbert Space

Abstract: We will discuss an elementary way of detecting some global anomalies from the way the symmetry algebra is realized on the torus Hilbert space of the anomalous theory, give a physical description of the imprint of the “layers” that enter in the cobordism classification of anomalies and discuss applications, including how anomalies can imply a supersymmetric spectrum in strongly coupled (nonsupersymmetric) gauge theories.