Ion-beam/plasma modes in ultradense relativistic quantum plasmas: Dispersion characteristics and beam-driven instability

I.S Elkamash, Fernando Haas, Ioannis Kourakis

Research output: Contribution to journalArticle

5 Citations (Scopus)
210 Downloads (Pure)

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.
Original languageEnglish
JournalPhysics of Plasmas
Volume24
DOIs
Publication statusPublished - 02 Sep 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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