The radiative self-force and charged fluids

TL;DR

This paper introduces a new fluid model for warm plasmas that incorporates the radiative self-force on electrons, analyzing equilibrium states and deriving wave dispersion relations consistent with relativistic kinetic theory.

Contribution

The paper presents a novel fluid model including radiation reaction effects, extending existing models and aligning with relativistic kinetic theory for magnetized plasmas.

Findings

Thermal motion is confined to magnetic field lines.

Derived dispersion relation matches relativistic kinetic theory.

Analyzed equilibrium states of magnetized plasma.

Abstract

We develop a new fluid model of a warm plasma that includes the radiative self-force on each plasma electron. Our approach is a natural generalization of established methods for generating fluid models without radiation reaction. The equilibrium of a magnetized plasma is analysed, and it is shown that the thermal motion is confined to the magnetic field lines. A dispersion relation is deduced for electric waves in a magnetized plasma, and it is shown to agree with our recently established relativistic kinetic theory derived from the Lorentz-Abraham-Dirac equation.