Gyrokinetic Stability of Electron-Positron-Ion Plasmas
Plasma Physics
2018-03-14 v1
Abstract
The gyrokinetic stability of electron-positron plasmas contaminated by ion (proton) admixture is studied in slab geometry. The appropriate dispersion relation is derived and solved. The ion-temperature-gradient driven instability, the electron-temperature-gradient driven instability, the universal mode, and the shear Alfven wave are considered. The contaminated plasma remains stable if the contamination degree is below some threshold, and it is found that the shear Alfven wave can be present in a contaminated plasma in cases where it is absent without ion contamination.
Keywords
Cite
@article{arxiv.1709.04861,
title = {Gyrokinetic Stability of Electron-Positron-Ion Plasmas},
author = {Alexey Mishchenko and Alessandro Zocco and Per Helander and Axel Koenies},
journal= {arXiv preprint arXiv:1709.04861},
year = {2018}
}