Transport properties of the hot and dense sQGP

TL;DR

This paper investigates the transport properties of the quark-gluon plasma at finite temperature and chemical potential using a dynamical quasi-particle model, providing results consistent with lattice QCD and relevant for heavy-ion collision experiments.

Contribution

It introduces calculations of shear viscosity and electric conductivity in a hot, dense sQGP using the DQPM, extending understanding at finite T and μ_q.

Findings

Transport coefficients increase with temperature and chemical potential.

Results agree well with lattice QCD data.

Provides essential inputs for heavy-ion collision studies.

Abstract

The transport properties of the quark gluon plasma (QGP) are studied in a QCD medium at finite temperature and chemical potential. We calculate the shear viscosity $\eta(T,\mu_q)$ and the electric conductivity $\sigma_e(T,\mu_q)$ for a system of interacting massive and broad quasi-particles as described by the dynamical quasi-particle model "DQPM" at finite temperature $T$ and quark chemical potential $\mu_q$ within the relaxation time approximation. Our results are in a good agreement with lattice QCD at finite temperature and show clearly the increase of the transport coefficients with increasing $T$ and $\mu_q$. Our results provide the basic ingredients for the study of the hot and dense matter in the Beam Energy Scan (BES) at RHIC and CBM at FAIR.