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SUMMARY:Koszul Duality in Field Theory &amp\; Holography - Natalie Paquett
 e (Caltech)
DTSTART:20200528T160000Z
DTEND:20200528T170000Z
UID:TALK141829@talks.cam.ac.uk
CONTACT:Dr. Carl Turner
DESCRIPTION:In this talk we discuss the problem of coupling quantum field 
 theories to topological line defects and explain that it is governed by a 
 central mathematical notion called Koszul duality for associative algebras
 . We then propose an analogous physical definition of Koszul duality for c
 hiral algebras. We will explain that in the context of (a twisted version 
 of) AdS(3)/CFT(2)\, in which a chiral algebra naturally arises in the CFT(
 2)\, a deformation of this version of Koszul duality can be used to comput
 e algebra OPEs. This talk is based on work in collaboration with K. Costel
 lo.
LOCATION:Online (Zoom)
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