Frequency and wave number dependence of the shear correlator in strongly coupled hot Yang-Mills theory
Abstract
We use AdS/QCD duality to compute the finite temperature Green's function G(omega,k;T) of the shear operator T12 for all omega,k in hot Yang-Mills theory. The goal is to assess how the existence of scales like the transition temperature and glueball masses affects the correlator computed in the scalefree conformal N=4 supersymmetric Yang-Mills theory. We observe sizeable effects for T close to Tc which rapidly disappear with increasing T. Quantitative agreement of these predictions with future lattice Monte Carlo data would suggest that QCD matter in this temperature range is strongly interacting.
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