An improved correspondence formula for AdS/CFT with multi-trace operators

An improved correspondence formula is proposed for the calculation of correlation functions of a conformal field theory perturbed by multi-trace operators from the analysis of the dynamics of the dual field theory in anti-de Sitter space. The formula reduces to the usual AdS/CFT correspondence formula in the case of single-trace perturbations. (C) 2002 Elsevier Science B.V. All rights reserved.