Filamentation instability in a quantum magnetized plasma
Plasma Physics
2009-11-13 v1 Space Physics
Abstract
The filamentation instability occurring when a non relativistic electron beam passes through a quantum magnetized plasma is investigated by means of a cold quantum magnetohydrodynamic model. It is proved that the instability can be completely suppressed by quantum effects if and only if a finite magnetic field is present. A dimensionless parameter is identified which measures the strength of quantum effects. Strong quantum effects allow for a much smaller magnetic field to suppress the instability than in the classical regime.
Keywords
Cite
@article{arxiv.0801.3950,
title = {Filamentation instability in a quantum magnetized plasma},
author = {A. Bret},
journal= {arXiv preprint arXiv:0801.3950},
year = {2009}
}
Comments
9 pages, 5 figures, to appear in Phys. Plasmas