The momentum analyticity of two-point correlators from perturbation theory and AdS/CFT

Details The momentum analyticity of two-point correlators from perturbation theory and AdS/CFT The momentum analyticity of two-point correlators from perturbation theory and AdS/CFT

2010-03-29

arxiv.org/abs/1003.5462v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 3 figures, typos fixed, 1 figure updated

Scientific paper

The momentum plane analyticity of two point function of a relativistic thermal field theory at zero chemical potential is explored. A general principle regarding the location of the singularities is extracted. In the case of the N=4 supersymmetric Yang-Mills theory at large $N_c$, a qualitative change in the nature of the singularity (branch points versus simple poles) from the weak coupling regime to the strong coupling regime is observed with the aid of the AdS/CFT correspondence.

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