Electromagnetic Properties of a Hot and Dense Medium

TL;DR

This paper investigates how extreme temperature and density conditions alter the electromagnetic properties of a medium, including permittivity, permeability, and neutrino interactions, with implications for high-energy astrophysics.

Contribution

It provides a detailed analysis of electromagnetic property modifications in hot, dense electron media, highlighting the impact on neutrino behavior and electromagnetic wave propagation.

Findings

Electromagnetic properties depend on temperature and density.

Neutrino electromagnetic interactions are significantly modified.

Propagation speed of electromagnetic waves is affected.

Abstract

We study the properties of an electromagnetically interacting medium in the presence of high concentration of electrons at extremely high temperatures and chemical potentials. We show that the electromagnetic properties of a medium such as the electric permittivity, magnetic permeability, magnetic moments and the propagation speed of electromagnetic waves as well as the corresponding particle processes depend on temperature and density of the medium. Electromagnetic properties of neutrinos are significantly modified due to their interactions with electrons when they propagate through such a medium of hot and dense electrons.