Quantum Strings in AdS5 x S5and Gauge–String Duality

摘要

We review some recent progress in understanding the spectrum of ener-gies/dimensions of strings/operators in AdS_5 x S_5 — planar N= 4 super Yang-Mills correspondence. We consider leading strong coupling corrections to the energy of lightest massive string modes in AdS5 x S5 , which should be dual to members of the Konishi operator multiplet in the SYM theory. This determines the general structure of strong-coupling expansion of the anomalous dimension of the Konishi operator. We use 1-loop results for semiclassical string states to extract information about the leading coefficients in this expansion.