Filamentation instability in a quantum magnetized plasma

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.

9 pages, 5 figures, to appear in Phys. Plasmas

References in corpus (3)

• Statistical Effects in the Multistream Model for Quantum Plasmas
• Nonlinear wave interactions in quantum magnetoplasmas
• Filamentation instability in a quantum plasma

Cited by in corpus (4)

• Physical interpretation of the quantum two-stream instability
• Connection between the two branches of the quantum two-stream instability across the k space
• Quantum kinetic theory of the filamentation instability
• Unstable spectrum of a relativistic electron beam interacting with a quantum collisional plasma: application to the Fast Ignition Scenario