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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:13030114  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Supersymmetric gauge theory and the Yangian
Speaker(s): Kevin Costello
Abstract: I'll explain a new connection between supersymmetric gauge theories and the Yangian. The main result is that a twisted, deformed version of the pure N=1 supersymmetric gauge theory is controlled by the Yangian, in the same way that Chern-Simons theory is controlled by the quantum group. This result is used to give an exact calculation, in perturbation theory, of the expectation value of a certain net of n+m Wilson operators in the deformed N=1 gauge theory. This expectation value coincides with the partition function of a spin-chain integrable lattice model on an n-by-m doubly-periodic lattice.
Date: 25/03/2013 - 11:00 am
Series: Colloquium
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