Speaker
Catherine Meusburger
(FAU Erlangen-Nürnberg)
Description
We use 3d defect TQFTs and state sum models with defects to give a gauge theoretical formulation of Kitaev's quantum double model (for a finite group) and (untwisted) Dijkgraaf-Witten TQFT with defects. This leads to a simple description in terms of embedding quivers, groupoids and their representations. Defect Dijkgraaf-Witten TQFTs is then formulated in terms of spans of groupoids and their representations.
This is work in progress with João Faría-Martins, University of Leeds.
External references
- 24030081
- 5072598b-4fb9-4314-a865-0e3753ffa96e
