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Self-dual gravity as a topological string

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TWTW01 - Twistors in Geometry & Physics

I will describe a topological string realization of self-dual Einstein gravity. Our construction is based on a new theory of topological gravity obtained by twisting 2d N = 4 supergravity. By coupling this to topological sigma models with hyperkahler targets, we build a topological string theory that captures deformation theory of hyperkahler manifolds in Plebanski’s heavenly formalism.  

This talk is part of the Isaac Newton Institute Seminar Series series.

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