BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Rajath Radhakrishnan (ICTP Trieste)
DTSTART:20231121T150000Z
DTEND:20231121T160000Z
DTSTAMP:20260423T021139Z
UID:SymSem/47
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SymSem/47/">
 Constraints on non-invertible symmetries in 2+1D</a>\nby Rajath Radhakrish
 nan (ICTP Trieste) as part of Symmetry Seminar\n\n\nAbstract\nIn this talk
 \, I will discuss some constraints on non-invertible symmetries implemente
 d by surface operators in 2+1D QFTs. I will first consider abelian TQFTs a
 nd argue that non-invertible surface operators exist if and only if there 
 are bosonic line operators. I will then discuss an extension of this resul
 t to non-abelian TQFTs. This implies that all condensation defects are inv
 ertible in a TQFT without bosonic line operators. I will give an independe
 nt argument for this result using higher-gauging of line operators. Finall
 y\, I will discuss some implications for general 2+1D QFTs. This talk is b
 ased on the paper https://arxiv.org/abs/2309.15181 with Matthew Buican.\n
LOCATION:https://researchseminars.org/talk/SymSem/47/
END:VEVENT
END:VCALENDAR