Three-point functions at strong coupling in the BMN limit

Understand

We consider structure constants of single-trace operators at strong coupling in planar $\mathcal{N}=4$ SYM theory using the hexagon formalism.

• We concentrate on heavy-heavy-light correlators where the heavy operators are BMN operators, with large R-charges and finite anomalous dimensions, and the light one is a finite-charge chiral primary operator.
• They describe the couplings between two highly boosted strings and a supergravity mode in the bulk dual.
• In the hexagon framework, two sums over virtual magnons are needed to bind the hexagons together around the light operator.