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SUMMARY:Self-dual gravity as a topological string - Atul Sharma (Harvard U
 niversity)
DTSTART:20240912T090000Z
DTEND:20240912T100000Z
UID:TALK219628@talks.cam.ac.uk
DESCRIPTION:I will describe a&nbsp\;topological string realization of self
 -dual Einstein gravity. Our construction is based on a new theory of topol
 ogical gravity obtained by twisting 2d N = 4 supergravity. By coupling thi
 s to topological sigma models with hyperkahler targets\, we build a topolo
 gical string theory that captures deformation theory of hyperkahler manifo
 lds in Plebanski's heavenly formalism.\n&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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