Electromagnetic response of hot QCD medium in the presence of background time-varying fields

TL;DR

This paper investigates how a hot QCD medium responds to external time-varying electromagnetic fields, analyzing induced currents and anisotropic effects using relativistic Boltzmann transport theory.

Contribution

It introduces a detailed study of electromagnetic response in a non-equilibrium, anisotropic QCD medium with in-medium interactions, considering time-dependent fields.

Findings

Electric charge transport is sensitive to field inhomogeneity.

Momentum anisotropy affects the induced currents.

Time dependence of fields influences the medium's response.

Abstract

The response of the hot QCD medium in the presence of external time dependent electromagnetic fields has been studied within the relativistic Boltzmann transport theory. The impact of the time dependence of the electromagnetic fields and collisional aspects of the medium to the induced electric and Hall current densities has been explored. The non-equilibrium momentum distribution of degrees of freedom has been obtained in the presence of space-time varying electromagnetic fields. Further, the analysis has been extended to an anisotropic QCD medium while incorporating the in-medium interaction effects. It is observed that the electric charge transport is sensitive to the inhomogeneity of the fields and the momentum anisotropy of the QCD medium.