String Theory Seminar  

17/07/2007, 15:30 — 16:30 — Room P3.31, Mathematics Building
Rui Lima Matos, DAMTP, University of Cambridge

Quantum dispersion of giant magnons II

We perform a first principles semi-classical computation of the one-loop corrections to the dispersion relation and $S$-matrix of giant magnons in $\mathrm{Ad}{S}^5\times S^5$ string theory. The results agree exactly with expectations based on the strong coupling expansion of the exact Asymptotic Bethe Ansatz equations. In particular we reproduce the Hernandez-Lopez term in the dressing phase.