logo Giant Magnons

We consider strings in AdS5xS5 and the corresponding gauge theory.
We take a limit where one of the charges becomes infinite.
In this limit it is possible to compare the gauge theory and string theory results. We find string solutions which have the same dispersion relation as the one obtained in the gauge theory.
We also discuss a direct computation of the S-matrix at large 't Hooft coupling using the classical string theory solutions.