Relaxation time of a CFT plasma at finite coupling

TL;DR

This paper calculates finite coupling corrections to the relaxation time of a strongly coupled conformal plasma, specifically N=4 supersymmetric Yang-Mills theory, using recent relativistic hydrodynamics formulations.

Contribution

It provides the first computation of relaxation time corrections at finite coupling for a conformal plasma, extending previous infinite coupling results.

Findings

Finite coupling corrections to relaxation time are quantified.

Results are expected to be universal for strongly coupled conformal plasmas.

The study advances understanding of hydrodynamic behavior at finite coupling.

Abstract

Following recent formulation of second order relativistic viscous hydrodynamics for conformal fluids, we compute finite coupling corrections to the relaxation time of N=4 supersymmetric Yang-Mills plasma. The result is expected to be universal for any strongly coupled conformal gauge theory plasma in four dimensions.