Bulk viscosity in a plasma of Gribov-Zwanziger gluons

Understand

We investigate dynamic properties of a plasma whose constituents are confining gluons resulting from the Gribov quantization.

• In a static formulation, this system reproduces qualitatively the pure-glue equation of state and thereby encodes crucial features of the phase transition.
• The dynamic description proposed in this work allows us to study non-equilibrium transport phenomena with the inclusion of confinement effects.
• In particular, we determine the non-equilibrium behaviour of the interaction measure (trace anomaly) and find the form of the bulk viscosity coefficient.