We consider the correlatorExpand abstract
/ of a light-like polygonal Wilson loop with n cusps with a local operator (like the dilaton or a chiral primary scalar) in planar N = 4 super Yang-Mills theory. As a consequence of conformal symmetry, the main part of such correlator is a function F of 3n-11 conformal ratios. The first non-trivial case is n = 4 when F depends on just one conformal ratio ζ. This makes the corresponding correlator one of the simplest non-trivial observables that one ...
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