A calculation of the shear and bulk viscosities of gluodynamics
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.
- http://arxiv.org/abs/0704.1801 - recent publication on the subject