B-field induced mixing between Langmuir waves and axions

TL;DR

This paper analytically explores how axions influence electromagnetic plasma oscillations in magnetized plasmas across various regimes, revealing modifications in dispersion relations and damping effects due to axion interactions.

Contribution

It provides a comprehensive analytical model of axion-induced effects on plasma wave dispersion and damping in different plasma regimes and conditions.

Findings

Axions modify plasma wave dispersion relations.

Landau damping is affected by axion presence.

Damping influences subluminal plasma oscillations.

Abstract

We present an analytic study of the dispersion relation for an isotropic magnetized plasma interacting with axions. We provide a quantitative picture of the electromagnetic plasma oscillations in both the ultrarelativistic and nonrelativistic regimes and considering both non-degenerate and degenerate media, accounting for the dispersion curves as a function of the plasma temperature and the ratio of the plasma phase velocity to the characteristic velocity of particles. We include the modifications on the Landau damping of plasma waves induced by the presence of the axion field, and we comment on the effects of damping on subluminal plasma oscillations.