Numerical analysis of electrostatic ion cyclotron instability in an electron-positron-ion plasma

Khorashadizadeh, S. M.; Niyat, M. Barati Moqadam; Niknam, A. R.

doi:10.1063/1.4953094

Cited by 6 publications

(2 citation statements)

References 34 publications

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“…It was also reported that the growth rate in unidirectional streaming is larger than the counter-streaming case. [12] Similar to the classical plasma, streaming instability has also become the subject of intense research in the field of quantum plasmas during the last decade. [13][14][15][16] For the first time, streaming instability was studied with the help of the quantum hydrodynamic (QHD) model, a new quantum-nature unstable mode was reported in the electron-ion plasma.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic analysis of electrostatic counter‐streaming instability in a spin‐polarized electron–positron–ion plasma

Khanum

Iqbal

Murtaza

2020

Contributions to Plasma Physics

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In this study, we present linear analysis of electrostatic counter-streaming instability in spin-polarized electron-positron-ion (e-p-i) plasma. With the aid of the separate spin evolution-quantum hydrodynamic (SSE-QHD) model, we derive the dispersion relation of counter-streaming instability. We numerically solve the dispersion and find four wave solutions: Langmuir wave, positron acoustic mode, and two electron and positron spin-dependent waves. It is noted that coupling of streaming and spin effects excites Langmuir instability and positron acoustic mode instability. However, in the absence of spin effect, only Langmuir instability will survive in e-p-i plasma. We have also discussed the effects of positron concentration, streaming speed, and spin polarization on the real frequency of waves and the growth rate. The present study may be helpful for understanding longitudinal wave propagation and instabilities in dense magnetized environments.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic analysis of electrostatic counter‐streaming instability in a spin‐polarized electron–positron–ion plasma

Khanum

Iqbal

Murtaza

2020

Contributions to Plasma Physics

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“…Bashir and Vranjes [24] has studied the unstable kinetic drift wave in an electronion plasma can very effectively be suppressed by adding an extra flowing ion (or plasma) population. Theoretical study of the effects of positron density on the electrostatic ion cyclotron instability in an electron-positron-ion plasma using the kinetic theory approach by assuming that positrons and electrons can drift parallel to the magnetic field either in the same or the opposite directions has been studied by Khorashadizadeh et al [25].…”

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confidence: 99%

Study of Electrostatic Ion-Cyclotron Waves in Magnetosphere of Uranus

Pandey

Kumar

2022

EEJP

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In this manuscript, the method of characteristics particle trajectories details used and the dispersion relation for the ionosphere of Uranus were being used to investigate electrostatic ion-cyclotron waves with parallel flow velocity shear in the presence of perpendicular inhomogeneous DC electric field and density gradient. The growth rate has been calculated using the dispersion relation. Electric fields parallel to the magnetic field transmit energy, mass, and momentum in the auroral regions of the planetary magnetosphere by accelerating charged particles to extremely high energies. The rate of heating of plasma species along and perpendicular to the magnetic field is also said to be influenced by the occurrence of ion cyclotron waves and a parallel electric field in the acceleration area.

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Electrostatic ion cyclotron instability in a plasma with q-nonextensive distributions

2016

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The general dispersion relation for electrostatic waves in magnetized plasmas is derived using the standard linear Vlasov theory and the q-distribution of Tsallis statistics. The dispersion relation is solved for a plasma that has nonextensive electrons drifting with respect to stationary ions, and satisfies the other conditions for the excitation of electrostatic ion cyclotron waves. The frequency spectrum and growth rate are obtained for the electrostatic ion cyclotron waves. The marginally stable state is investigated for the onset of instability. It is shown that decreasing the non-extensivity parameter of electrons strengthens the instability and decreases the minimum value of the critical drift velocity, whereas larger temperature anisotropy of ions weakens the instability and increases the minimum value of the critical drift velocity.

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Numerical analysis of electrostatic ion cyclotron instability in an electron-positron-ion plasma

Cited by 6 publications

References 34 publications

Hydrodynamic analysis of electrostatic counter‐streaming instability in a spin‐polarized electron–positron–ion plasma

Hydrodynamic analysis of electrostatic counter‐streaming instability in a spin‐polarized electron–positron–ion plasma

Study of Electrostatic Ion-Cyclotron Waves in Magnetosphere of Uranus

Electrostatic ion cyclotron instability in a plasma with q-nonextensive distributions

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