Strong-coupling effects in a plasma of confining gluons
arXiv:1512.06402 · doi:10.1016/j.nuclphysa.2016.01.063
Abstract
The plasma consisting of confining gluons resulting from the Gribov quantization of the SU(3) Yang-Mills theory is studied using non-equilibrium fluid dynamical framework. Exploiting the Bjorken symmetry and using linear response theory a general analytic expressions for the bulk and shear viscosity coefficients are derived. It is found that the considered system exhibits a number of properties similar to the strongly-coupled theories, where the conformality is explicitly broken. In particular, it is shown that, in the large temperature limit, bulk to shear viscosity ratio, scales linearly with the difference , where is the speed of sound. Results obtained from the analysis are in line with the interpretation of the quark-gluon plasma as an almost perfect fluid.
Talk presented by Radoslaw Ryblewski at Quark Matter 2015, 29 September 2015, Kobe, Japan; 4 pages, 2 figures
References in corpus (11)
- The equation of state in (2+1)-flavor QCD
- A calculation of the bulk viscosity in SU(3) gluodynamics
- Massless Mode and Positivity Violation in Hot QCD
- Equation of State of Gluon Plasma from Local Action
- Transport coefficients of the Gribov-Zwanziger plasma
- Dilepton rate and quark number susceptibility with the Gribov action
- Color confinement and screening in the -vacuum
- Bulk viscosity in a plasma of Gribov-Zwanziger gluons
- Three-loop HTLpt thermodynamics at finite temperature and chemical potential
- Cavitation in a quark gluon plasma with finite chemical potential and several transport coefficients
- Recent progress in hard-thermal-loop QCD thermodynamics and collective excitations