Relativistic QED Plasma at Extremely High Temperature

TL;DR

This paper uses renormalization in QED to analyze the properties of relativistic plasma at extremely high temperatures in the early universe, revealing how key parameters depend on temperature and identifying conditions for relativistic plasma.

Contribution

It provides a detailed calculation of effective parameters of QED plasma at high temperatures, linking renormalization constants to plasma behavior in the early universe.

Findings

Dielectric constant depends on temperature

Debye length varies with early universe conditions

Propagation speed and plasma frequency are temperature-dependent

Abstract

Renormalization scheme of QED (Quantum Electrodynamics) at high temperatures is used to calculate the effective parameters of relativistic plasma in the early universe. Renormalization constants of QED play role of effective parameters of the theory and can be used to determine the collective behavior of the medium. We explicitly show that the dielectric constant, magnetic reluctivity, Debye length and the plasma frequency depend on temperature in the early universe. Propagation speed, refractive index, plasma frequency and Debye shielding length of a QED plasma are computed at extremely high temperatures in the early universe. We also found the favorable conditions for the relativistic plasma from this calculations.