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High Energy Theory Seminar
Scattering Amplitudes and Wilson Loops in Twistor Space
Over the past few years, a remarkable duality between planar scattering amplitudes and null polygonal Wilson Loops has emerged in maximally supersymmetric Yang-Mills theory. The duality is now known to hold for arbitrary external helicities and to all orders in the 't Hooft coupling. I will review our understanding of this duality from the point of view of the twistor formulation of the theory. At tree level, the scattering amplitudes are powerfully constrained by an infinite dimensional Yangian symmetry. I will also argue that, properly understood, a large part of this symmetry extends to loop amplitudes.
Date & Time
September 26, 2011 | 2:30pm – 4:00pm
Location
PCTS Seminar RoomSpeakers
Affiliation
Perimeter Institute