Nonperturbative scales in AdS/CFT
Nonperturbative scales in AdS/CFT
The cusp anomalous dimension is a ubiquitous quantity in four-dimensional gauge theories, ranging from QCD to maximally supersymmetric Yang–Mills theory, and it is one of the most thoroughly investigated observables in the AdS/CFT correspondence. In planar SYM theory, its perturbative expansion at weak coupling has a finite radius of convergence …