Streaming effects on dust ion acoustic wave in dense quantized plasmas

2021 ◽  
Vol 35 (04) ◽  
pp. 2150049
Author(s):  
Zahid Mir ◽  
A. Rasheed ◽  
Arroj A. Khan ◽  
M. Asif ◽  
M. Jamil
Keyword(s):  
Dense Plasma ◽  
Dusty Plasmas ◽  
Linear Dispersion ◽  
Ion Acoustic Wave ◽  
Exchange Correlation ◽  
Quantum Hydrodynamic Model ◽  
Exchange Correlation Potential ◽  
Ion Acoustic ◽  
Correlation Potential ◽  
Quantum Hydrodynamic

The propagation of dust-ion acoustic (DIA) wave is studied with the streaming effects of ion particles in a quantum dusty plasmas. The quantum effects arising from Landau magnetization, Fermi degenerate pressure, tunneling potential and exchange-correlation potential are considered for the electrons. Linear dispersion relation is derived using Quantum Hydrodynamic Model and the results are graphically presented showing the propagation and growth rate of the electrostatic mode in the dense plasma environment.

Landau Quantised Modification of Rayleigh–Taylor Instability in Dense Plasmas

2020 ◽  
Vol 75 (2) ◽  
pp. 113-118 ◽  
Author(s):  
M. Shahid ◽  
A. Rasheed ◽  
Misbah Kanwal ◽  
M. Jamil
Keyword(s):  
Magnetic Field ◽  
Gravitational Instability ◽  
Taylor Instability ◽  
Dense Plasmas ◽  
Exchange Correlation ◽  
Quantum Hydrodynamic Model ◽  
Exchange Correlation Potential ◽  
Correlation Potential ◽  
Rayleigh Taylor Instability ◽  
Quantum Hydrodynamic

AbstractEffects of Landau quantisation and exchange-correlation potential on Rayleigh–Taylor instability (RTI)/gravitational instability are investigated in inhomogeneous dense plasmas. Quantum hydrodynamic model is used for the electrons, while the ions are assumed to be cold and classical. RTI is modified with the inclusion of Landau quantisation related to plasma density, ambient magnetic field, exchange speed, and modified Fermi speed. Owing to the exchange-correlation effects, gravitational instability increases, whereas the Landau quantisation effects contribute in the opposite way for quantisation factor η < 1. Since the exchange-correlation potential is a function of density, by controlling the number density and magnetic field one can control RTI.

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