The dynamics of quark-gluon plasma and AdS/CFT

TL;DR

This paper reviews how the AdS/CFT correspondence can be used to study the real-time dynamics of strongly coupled quark-gluon plasma, connecting gravitational solutions with plasma behavior.

Contribution

It introduces pedagogical techniques for applying AdS/CFT to analyze plasma dynamics, including both equilibrium and far-from-equilibrium regimes.

Findings

Application of AdS/CFT to boost-invariant plasma expansion

Connection between gravitational Einstein's equations and plasma hydrodynamics

Insights into non-equilibrium plasma behavior

Abstract

In these pedagogical lectures, we present the techniques of the AdS/CFT correspondence which can be applied to the study of real time dynamics of a strongly coupled plasma system. These methods are based on solving gravitational Einstein's equations on the string/gravity side of the AdS/CFT correspondence. We illustrate these techniques with applications to the boost-invariant expansion of a plasma system. We emphasize the common underlying AdS/CFT description both in the large proper time regime where hydrodynamic dynamics dominates, and in the small proper time regime where the dynamics is far from equilibrium. These AdS/CFT methods provide a fascinating arena interrelating General Relativity phenomenae with strongly coupled gauge theory physics.