2007/06/29 by A. Bret
Physics and Astronomy · #Dust and Plasma Wave Phenomena #Laser-Plasma Interactions and Diagnostics #Magnetic confinement fusion research #astro-ph #physics.plasm-ph #physics.space-ph
paper · pdf · doi:10.1063/1.2759886
To appear in Physics of Plasmas
arxiv created 2007/06/29 · openalex publication_date 2007/08/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The growth rate of the filamentation instability triggered when a diluted cold electron beam passes through a cold plasma is evaluated using the quantum hydrodynamic equations. Compared with a cold fluid model, quantum effects reduce both the unstable wave vector domain and the maximum growth rate. Stabilization of large wave vector modes is always achieved, but significant reduction of the maximum growth rate depends on a dimensionless parameter that is provided. Although calculations are extended to the relativistic regime, they are mostly relevant to the nonrelativistic one.