Quantum anomaly: old and new
Closed
KMI Colloquium
2017-03-22 17:00
Yuji Tachikawa
KMI Science Symposia (ES635)
The quantum anomaly of a symmetry is a basic feature of quantum field theories. It was originally discovered in the context of the decay of a neutral pion to two photons, and has had vast implications in high energy physics. More recently, it is recognized that it plays a crucial role in the understanding of topological phases in condensed matter systems. In this talk I will give a brief overview of these developments.