Equation of State and Energy Loss of Hot and Dense Quark-Gluon matter from Holographic Black Holes

TL;DR

This paper uses holographic models based on gravity/gauge duality to study the equation of state and energy loss mechanisms in hot, dense quark-gluon plasma, matching lattice QCD results and exploring phase transitions.

Contribution

It introduces a holographic model constrained by lattice QCD data to analyze the equation of state and energy loss in quark-gluon plasma at finite temperature and density.

Findings

Holographic model reproduces lattice QCD equation of state at zero density.

Energy loss parameters vary across phase transition lines.

Provides insights into quark energy loss near the critical point.

Abstract

By using gravity/gauge correspondence, we construct a holographic model, constrained to mimic the lattice QCD equation of state at zero density, to investigate the temperature and baryon chemical potential dependence of the equation of state. We also obtained the energy loss of light and heavy partons within the hot and dense plasma represented by the heavy quark drag force, Langevin diffusion coefficients and jet quenching parameter at the critical point and across the first-order transition line predicted by the model.