Non-local probes for a relaxing non-Abelian plasma

Abstract

The thermalization of a strongly coupled plasma is examined in the holographic framework through non-local observables: the equal-time two-point correlation function of a large dimension boundary operator, and Wilson loops of different shapes. The evolution of the probes from an initial far-from-equilibrium state to a hydrodynamic regime is found to depend on their size. A hierarchy among the thermalization times of the energy density, the pressures and the large size probes, is identified: the relaxation process is faster at short distances.

Comments: 3 pages, 1 figure. Presented at IFAE 2016, Genova, Italy, March 30 - April 1, 2016. One reference updated