Cusp anomalous dimension in maximally supersymmetric Yang-Mills theory at strong coupling

Abstract

We construct an exact analytical solution to the integral equation which is believed to describe logarithmic growth of the anomalous dimensions of high spin operators in planar N=4 super Yang-Mills theory and use it to determine the strong coupling expansion of the cusp anomalous dimension.

Comments: 5 pages. v3: minor corrections, references and important note added