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SUMMARY:Catherine Meusburger (University of Erlangen-Nuremberg)
DTSTART:20240619T160000Z
DTEND:20240619T170000Z
DTSTAMP:20260423T040711Z
UID:TQFT/115
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TQFT/115/">Q
 uantum double models and Dijkgraaf-Witten TQFT with defects</a>\nby Cather
 ine Meusburger (University of Erlangen-Nuremberg) as part of Topological Q
 uantum Field Theory Club (IST\, Lisbon)\n\n\nAbstract\nWe use 3d defect TQ
 FTs and state sum models with defects to give a gauge theoretical formulat
 ion of Kitaev's quantum double model (for a finite group) and the (untwist
 ed) Dijkgraaf-Witten TQFT with defects. This leads to a simple description
  in terms of embedded quivers\, groupoids and their representations. Defec
 t Dijkgraaf-Witten TQFT is then formulated in terms of spans of groupoids 
 and their representations.\n\nThis is work in progress with João Faría M
 artins (University of Leeds).\n
LOCATION:https://researchseminars.org/talk/TQFT/115/
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