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PIRSA:13070064

Twistor Strings for N=8 Supergravity

APA

Skinner, D. (2013). Twistor Strings for N=8 Supergravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/13070064

David Skinner University of Cambridge

Talk numberPIRSA:13070064
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

The perturbative S-matrix of General Relativity has a rich and fascinating geometric structure that is completely obscured by its traditional description in terms of Feynman diagrams. I'll explain a new way of looking at four dimensional supergravity: as a string theory in twistor space. All tree-level amplitudes in the theory can be described by algebraic curves in Penrose's nonlinear graviton