Meson turbulence at quark deconfinement from AdS/CFT

TL;DR

This paper uses AdS/CFT to demonstrate that quark deconfinement in supersymmetric QCD involves a universal meson turbulence characterized by a power-law energy distribution across meson resonances.

Contribution

It introduces the concept of meson turbulence during deconfinement and shows its universality across different quench scenarios using holographic methods.

Findings

Energy distribution scales as n^-5 across meson levels.

Universal meson turbulence observed near deconfinement.

Results consistent for static and dynamic quench processes.

Abstract

Based on the QCD string picture at confining phase, we conjecture that the deconfinement transition always accompanies a condensation of higher meson resonances with a power-law behavior, "meson turbulence". We employ the AdS/CFT correspondence to calculate the meson turbulence for $\mathcal{N}=2$ supersymmetric QCD at large $N_c$ and at strong coupling limit, and find that the energy distribution to each meson level $n$ scales as $n^\alpha$ with the universal scaling $\alpha=-5$. The universality is checked for various ways to attain the quark deconfinement: a static electric field below/around the critical value, a time-dependent electric field quench, and a time-dependent quark mass quench, all result in the turbulent meson condensation with the universal power $\alpha=-5$ around the deconfinement.