Effects of the Second Harmonic on the GAM in Electron Scale Turbulence
Plasma Physics
2014-01-27 v1
Abstract
The effects higher order harmonics have been self-consistently included in the derivation of the electron branch of the electron Geodesic Acoustic Mode (el-GAM) in an Electron-Temperature-Gradient (ETG) turbulence background. The work is based on a two-fluid model including finite -effects while retaining non-adiabatic ions. In solving the linear dispersion relation, it is found that the due to the coupling to the mode the real frequency may be significantly altered and yield higher values.
Keywords
Cite
@article{arxiv.1401.6300,
title = {Effects of the Second Harmonic on the GAM in Electron Scale Turbulence},
author = {Johan Anderson and Hans Nordman and Raghvendra Singh},
journal= {arXiv preprint arXiv:1401.6300},
year = {2014}
}
Comments
12 pages, 1 figure. Work presented at 15th EFTC 2013, September 23-26th, Oxford, England