A calculation of the shear viscosity in SU(3) gluodynamics
High Energy Physics - Lattice
2010-04-06 v1 High Energy Physics - Phenomenology
Abstract
We perform a lattice Monte-Carlo calculation of the two-point functions of the energy-momentum tensor at finite temperature in the SU(3) gauge theory. Unprecedented precision is obtained thanks to a multi-level algorithm. The lattice operators are renormalized non-perturbatively and the classical discretization errors affecting the correlators are corrected for. A robust upper bound for the shear viscosity to entropy density ratio is derived, eta/s < 1.0, and our best estimate is eta/s = 0.134(33) at T=1.65Tc under the assumption of smoothness of the spectral function in the low-frequency region.
Keywords
Cite
@article{arxiv.0704.1801,
title = {A calculation of the shear viscosity in SU(3) gluodynamics},
author = {Harvey B. Meyer},
journal= {arXiv preprint arXiv:0704.1801},
year = {2010}
}
Comments
4 pages, 3 figures