Propagation and energy of bright and dark solitons in magnetized quantum semiconductor plasmas in the presence of Bohm potential effect

2021 ◽  
pp. 1-18
Author(s):  
S. Y. El-Monier ◽  
A. Atteya
Keyword(s):  
Potential Effect ◽  
Dark Solitons ◽  
Bohm Potential ◽  
Quantum Semiconductor ◽  
Semiconductor Plasmas

Impact of Relativistic Electron Beam on Hole Acoustic Instability in Quantum Semiconductor Plasmas

2018 ◽  
Vol 73 (2) ◽  
pp. 135-141 ◽  
Author(s):  
M. Siddique ◽  
M. Jamil ◽  
A. Rasheed ◽  
F. Areeb ◽  
Asif Javed ◽  
...  
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Semiconductor Plasma ◽  
Quantum Hydrodynamic Model ◽  
Bohm Potential ◽  
Plasma Species ◽  
Degeneracy Pressure ◽  
Quantum Semiconductor ◽  
Pressure Exchange

AbstractWe studied the influence of the classical relativistic beam of electrons on the hole acoustic wave (HAW) instability exciting in the semiconductor quantum plasmas. We conducted this study by using the quantum-hydrodynamic model of dense plasmas, incorporating the quantum effects of semiconductor plasma species which include degeneracy pressure, exchange-correlation potential and Bohm potential. Analysis of the quantum characteristics of semiconductor plasma species along with relativistic effect of beam electrons on the dispersion relation of the HAW is given in detail qualitatively and quantitatively by plotting them numerically. It is worth mentioning that the relativistic electron beam (REB) stabilises the HAWs exciting in semiconductor (GaAs) degenerate plasma.

Solitary acoustic pulses in quantum semiconductor plasmas

2012 ◽  
Vol 101 (3) ◽  
pp. 032106 ◽  
Author(s):  
W. M. Moslem ◽  
I. Zeba ◽  
P. K. Shukla
Keyword(s):  
Quantum Semiconductor ◽  
Semiconductor Plasmas

scholarly journals Drift Modified Longitudinal Electrokinetic Mode in Colloids Laden Semiconductor Quantum Plasmas

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Sandhya Chaudhary ◽  
Nilesh Nimje ◽  
Nishchhal Yadav ◽  
S. Ghosh
Keyword(s):  
Quantum Effect ◽  
Wave Spectrum ◽  
Linear Dispersion ◽  
Semiconductor Plasma ◽  
Quantum Hydrodynamic Model ◽  
Bohm Potential ◽  
Dc Electric Field ◽  
Quantum Hydrodynamic ◽  
Quantum Semiconductor ◽  
Absorption Characteristics

Dispersion and absorption characteristics of electrokinetic wave in unmagnetised extrinsic semiconductor with streaming carriers are analytically investigated. By using quantum hydrodynamic model, a linear dispersion relation is derived for longitudinal electrokinetic wave in colloids laden semiconductor plasma under slow electrokinetic mode regime. Results indicate that quantum effect through Bohm potential significantly modifies the dispersion and absorption characteristics of electrokinetic wave spectrum. The outcome is hoped to add substantially to the present knowledge of wave spectrum of longitudinal electrokinetic wave in colloids laden quantum semiconductor plasma subjected to a dc electric field along the direction of wave propagation.

scholarly journals Diamagnetic drift instabilities in collisional non-uniform quantum dusty magnetoplasmas

2012 ◽  
Vol 78 (6) ◽  
pp. 589-593 ◽  
Author(s):  
M. JAMIL ◽  
CH. UZMA ◽  
K. ZUBIA ◽  
I. ZEBA ◽  
H. M. RAFIQUE ◽  
...  
Keyword(s):  
Potential Effect ◽  
Quantum Plasma ◽  
Lower Hybrid ◽  
Dust Acoustic Wave ◽  
Bohm Potential ◽  
Dust Acoustic ◽  
Hybrid Waves ◽  
Drift Instability ◽  
Diamagnetic Drift ◽  
Uniform Quantum

AbstractDust-acoustic and dust-lower-hybrid diamagnetic drift wave instabilities have been examined in a collisional non-uniform quantum dusty magnetoplasma. The dust-acoustic drift instability arises through the Fermi degenerate pressure of electrons for a high-density plasma, while for a relatively low-density collisional quantum plasma and short wavelength consideration, the instability is dominated by the Bohm potential effect exciting a new quantum dust-acoustic wave. In the long-range wavelength limit, dust-lower-hybrid waves are found to be unstable because of the diamagnetic drift of magnetized ions. Various possible instability conditions are found for diamagnetic drift instability.

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