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A calculation of the shear and bulk viscosities of gluodynamics

Meyer, HB (Massachusetts Institute of Technology)
Wednesday 22 August 2007, 11:30-11:50

Seminar Room 1, Newton Institute


We present an accurate lattice calculation of the Euclidean two-point functions of the energy-momentum tensor in the SU(3) gauge theory at temperatures relevant to present and future heavy ion colliders. This allows us to give a robust upper bound on the shear and bulk viscosities. We compare the correlators to AdS/CFT predictions and quantify the deviations from conformality. Finally, we describe the extraction of the corresponding spectral functions and give our best estimates of the transport coefficients.

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