Speaker
Fister Leonard
(IPhT, CEA Saclay)
Description
We study non-perturbative gluon spectral functions at finite temperature in quenched QCD with the maximum entropy method. We also provide a closed loop equation for the spectral function of the energy-momentum tensor in terms of the gluon spectral function. This setup is then used to compute the shear viscosity over entropy density ratio eta/s in a temperature range from about 0.4 Tc to 4.5 Tc. The ratio eta/s has a minimum at about 1.25 Tc with the value of about 0.115. We also discuss extensions of the present results to QCD.
Author
Fister Leonard
(IPhT, CEA Saclay)
