abstract:
I will explain the integrability-based method to compute three-point
functions in the so-called SU(2)-sector of N=4 SYM at strong coupling.
Owing to the AdS/CFT correspondence, such computation can be performed
by evaluating the area of the string worldsheet in $AdS_3 \times S^3$
spacetime plus the boundary terms which originate from the vertex
operators. The resultant expression we get is unexpectedly similar to
the one obtained in the gauge theory at weak coupling.