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SUMMARY:Roland Bittleston (Perimeter Inst. Theor. Phys.)
DTSTART:20211209T154500Z
DTEND:20211209T173000Z
DTSTAMP:20260423T040151Z
UID:LIJC/55
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LIJC/55/">Bo
 sonic string from Beltrami Chern-Simons</a>\nby Roland Bittleston (Perimet
 er Inst. Theor. Phys.) as part of London Integrability Journal Club\n\n\nA
 bstract\nIt is well understood how the 2d free scalar CFT emerges from 3d 
 Chern-Simons theory with chiral boundary conditions. Adapting a recent pro
 posal of Costello and Stefański\, I will show how bosonic string theory c
 an be obtained from this description by coupling to a dynamical Beltrami d
 ifferential in the 3d theory. In particular\, I will show how this Beltram
 i differential restores worldsheet diffeomorphism and Weyl invariance in t
 he 2d theory\, and recover the Polyakov action explicitly. By rewriting th
 e theory in the BV formalism\, I will show how the bc ghost system arises 
 from the 3d perspective. Finally\, if there is sufficient time\, I’ll pr
 ovide the 3d realization of vertex operators. This talk is based on work i
 n progress with Kevin Costello and Bogdan Stefański.\n
LOCATION:https://researchseminars.org/talk/LIJC/55/
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