Cold plasma waves in the chiral Maxwell-Carroll-Field-Jackiw electrodynamics

TL;DR

This paper investigates how plasma waves propagate and are absorbed in a modified electrodynamics framework influenced by chiral effects, revealing new refractive behaviors and polarization phenomena.

Contribution

It introduces a detailed analysis of plasma wave propagation in chiral Maxwell-Carroll-Field-Jackiw electrodynamics, highlighting new refractive indices and polarization effects.

Findings

Identification of four distinct refractive indices for plasma waves.

Discovery of negative refraction zones and rotatory power enhancement.

Observation of rotatory power sign reversal in rotating plasmas.

Abstract

In this work, we study the propagation and absorption of plasma waves in the chiral Maxwell-Carroll-Field-Jackiw (MCJF) electrodynamics. The Maxwell equations are rewritten for a cold, uniform, and collisionless fluid plasma model, allowing us to determine the new refractive indices and propagating modes. The cases of propagation parallel and orthogonal to the magnetic field are examined considering a purely timelike CFJ background that plays the role of the magnetic conductivity chiral parameter. The collective electromagnetic modes are associated with four distinct refractive indices associated with right-circularly polarized and left-circularly polarized waves. For each index, the propagation and absorption zones are illustrated for some specific parameter values. In low-frequency regime, we have obtained modified helicons with right- and left-circularly polarizations. The optical behavior is investigated by means of the rotatory power (RP) and dichroism coefficient. The existence of a negative refraction zone enhances the rotatory power. It is also observed RP sign reversal, a feature of rotating plasmas.