Intermediate coupling regime in the AdS/CFT correspondence

Abstract

The correspondence between the 't Hooft limit of $N=4$ super Yang-Mills theory and tree-level type-IIB superstring theory on ${\mathrm{AdS}}_{5}\ifmmode\times\else\texttimes\fi{}{\mathrm{S}}^{5}$ in a Ramond-Ramond background at values of $\ensuremath{\lambda}{=g}^{2}N$ ranging from infinity to zero is examined in the context of unitarity. A squaring relation for the imaginary part of the holographic scattering of identical string fields in the two-particle channels is found, and a mismatch between weak and strong 't Hooft coupling is pointed out within the correspondence. Several interpretations and implications are proposed.

Locations

• Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields - View
• arXiv (Cornell University) - View - PDF
• DataCite API - View