Viscous plasma evolution from gravity using AdS/CFT

TL;DR

This paper uses the AdS/CFT correspondence to analyze the evolution of a viscous plasma, demonstrating that nonsingularity conditions predict hydrodynamic behavior with a viscosity coefficient matching previous static case results.

Contribution

It shows that nonsingularity of the dual geometry predicts viscous hydrodynamics with known viscosity without additional assumptions.

Findings

Nonsingularity conditions predict hydrodynamic expansion.

Viscosity coefficient matches earlier static case results.

Provides geometric insight into plasma evolution.

Abstract

We analyze the AdS/CFT dual geometry of an expanding boost-invariant plasma. We show that the requirement of nonsingularity of the dual geometry for leading and subasymptotic times predicts, without any further assumptions about gauge theory dynamics, hydrodynamic expansion of the plasma with viscosity coefficient exactly matching the one obtained earlier in the static case by Policastro, Son and Starinets.