Semiclassical analysis of string-gauge duality on noncommutative space

Abstract

We use semiclassical methods to study closed strings in the modified AdS(5)xS(5) background with constant B fields. The pointlike closed strings and the stretched closed strings rotating around the big circle of S-5 are considered. Quantization of these closed string leads to a time-dependent string spectrum, which we argue corresponds to the renormalization-group flow of the dual noncommutative Yang-Mills theory.