Dec 15 – 18, 2020
Online (Zoom)
Asia/Tokyo timezone

Higher groups and topological phases of matter

Dec 15, 2020, 5:00 PM
Online (Zoom)

Online (Zoom)

The necessary information (links, IDs and passwords) will be sent to the participants by E-mail before the workshop starts.


Dr Apoorv Tiwari (U. of Zurich)


I will describe how symmetry structures appearing in quantum many-body systems can be understood within the framework of fusion categories. Quantum systems with ``higher symmetry" structures naturally appear by generalising or weakening certain axioms of these fusion categories. I will touch upon various topological aspects of higher group symmetries such as symmetry protected topological phases, anomalies and topological gauge theories.

Presentation materials