Far from equilibrium Chiral Magnetic Effect in Strong Magnetic Fields from Holography

TL;DR

This paper investigates the out-of-equilibrium dynamics of the chiral magnetic effect in strongly coupled theories using holography, providing insights relevant for heavy ion collision experiments.

Contribution

It introduces a holographic model to study the real-time evolution of the chiral magnetic effect, matching parameters to QCD, and estimates equilibration times in quark-gluon plasma.

Findings

Equilibration time of about 0.35 fm/c for the chiral magnetic effect.

Chiral anomaly influences the out-of-equilibrium dynamics.

Results are relevant for understanding heavy ion collision experiments.

Abstract

We study the real time evolution of the chiral magnetic effect out-of-equilibrium in strongly coupled anomalous field theories. We match the parameters of our model to QCD parameters and draw lessons of possible relevance for the realization of the chiral magnetic effect in heavy ion collisions. In particular, we find an equilibration time of about $\sim0.35$ fm/c in presence of the chiral anomaly for plasma temperatures of order $T\sim300-400$ MeV.