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ID: 50941.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
On a large N degeneracy in N=4 SYM and the AdS/CFT correspondence
Authors:Arutyunov, Gleb; Sokatchev, E.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Nuclear Physics B
Volume:663
Start Page:163
End Page:196
Review Status:not specified
Audience:Not Specified
Abstract / Description:We study the four-point correlator of 12 -BPS operators of weight 4 in N = 4 SYM, which are dual to massive KK modes in AdS5 supergravity. General field-theoretic arguments lead to a partially non-renormalized form of the amplitude that depends on two a priori independent functions of the conformal cross-ratios. We explicitly compute the amplitude in the large N limit at one-loop (order g2) and in AdS5 supergravity. Surprisingly, the one-loop result shows that the two functions determining the amplitude coincide while in the supergravity regime they are distinctly different. We discuss the possible implications of this perturbative degeneracy for the AdS/CFT correspondence.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
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