Abstract
A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation of
electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A
dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is
investigated. Three types of waves are shown to exist, representing a modified electron plasma
(Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively.
Stability analysis reveals the occurrence of an imaginary frequency part in three regions.
The dependence of the instability growth rate on the ion beam parameters (concentration and
speed) has been investigated.
electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A
dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is
investigated. Three types of waves are shown to exist, representing a modified electron plasma
(Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively.
Stability analysis reveals the occurrence of an imaginary frequency part in three regions.
The dependence of the instability growth rate on the ion beam parameters (concentration and
speed) has been investigated.
| Original language | English |
|---|---|
| Journal | Physics of Plasmas |
| Volume | 24 |
| DOIs | |
| Publication status | Published - 02 Sept 2017 |
ASJC Scopus subject areas
- General Physics and Astronomy