Yangian symmetry of light-like Wilson loops

Details Yangian symmetry of light-like Wilson loops Yangian symmetry of light-like Wilson loops

2010-11-18

arxiv.org/abs/1011.4264v2

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 5 figures

Scientific paper

We show that a certain class of light-like Wilson loops exhibits a Yangian symmetry at one loop, or equivalently, in an Abelian theory. The Wilson loops we discuss are equivalent to one-loop MHV amplitudes in N=4 super Yang-Mills theory in a certain kinematical regime. The fact that we find a Yangian symmetry constraining their functional form can be thought of as the effect of the original conformal symmetry associated to the scattering amplitudes in the N=4 theory.

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