Lectures on Three-point Functions in N=4 Supersymmetric Yang-Mills Theory

Understand

This is a pedagogical review on the integrability-based approach to the three-point function in N=4 supersymmetric Yang-Mills theory.

• We first discuss the computation of the structure constant at weak coupling and show that the result can be recast as a sum over partitions of the rapidities of the magnons.
• We then introduce a non-perturbative framework, called the "hexagon approach", and explain how one can use the symmetries (i.e.
• superconformal and gauge symmetries) and integrability to determine the structure constants.