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

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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

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plasma diffusion
ion beams
electron plasma
wave propagation
ions
hydrodynamics
occurrences
electrostatics
low frequencies
harmonics
acoustics
electrons

Cite this

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title = "Ion-beam/plasma modes in ultradense relativistic quantum plasmas: Dispersion characteristics and beam-driven instability",
abstract = "A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation ofelectrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. Adispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets isinvestigated. 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 andspeed) has been investigated.",
author = "I.S Elkamash and Fernando Haas and Ioannis Kourakis",
year = "2017",
month = "9",
day = "2",
doi = "10.1063/1.4989777",
language = "English",
volume = "24",
journal = "Physics of Plasmas",
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publisher = "American Institute of Physics",

}

Ion-beam/plasma modes in ultradense relativistic quantum plasmas: Dispersion characteristics and beam-driven instability. / Elkamash, I.S; Haas, Fernando; Kourakis, Ioannis.

In: Physics of Plasmas, Vol. 24, 02.09.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ion-beam/plasma modes in ultradense relativistic quantum plasmas: Dispersion characteristics and beam-driven instability

AU - Elkamash, I.S

AU - Haas, Fernando

AU - Kourakis, Ioannis

PY - 2017/9/2

Y1 - 2017/9/2

N2 - A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation ofelectrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. Adispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets isinvestigated. 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 andspeed) has been investigated.

AB - A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation ofelectrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. Adispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets isinvestigated. 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 andspeed) has been investigated.

U2 - 10.1063/1.4989777

DO - 10.1063/1.4989777

M3 - Article

VL - 24

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

ER -