RG Flow, Wilson Loops and the Dilaton Tadpole

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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12 pages, Latex. v2: minor changes, refs. added

Scientific paper

10.1016/S0370-2693(00)00475-5

We discuss the role of the dilaton tadpole in the holographic description of non-supersymmetric gauge theories that are conformal in the planar limit. On the string theory side, the presence of the dilaton tadpole modifies the AdS background inducing a logarithmic running for the radius and the dilaton. Using the holographic prescription we compute the Wilson loop on the gravity side and find a smooth interpolating potential between asymptotic freedom and confinement, as expected from field theory.

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