Dualities in superconformal gauge theory
Abstract:
We consider several observables in maximally supersymmetric gauge
theory in four dimensions: correlation functions of gauge invariant
operators, Wilson loops and scattering amplitudes. We show that there exist
(un)expected duality relations between them, in the planar approximation and
in a singular light-like limit. The duality reveals a hidden dynamical
symmetry of the Yangian type.