Electron acoustic solitary structures and shocks in dense inner magnetosphere finite temperature plasma

2020 ◽  
Vol 175 (9-10) ◽  
pp. 961-973
Author(s):  
Jyotirmoy Goswami ◽  
Swarniv Chandra ◽  
Jit Sarkar ◽  
Basudev Ghosh
Keyword(s):  
Finite Temperature ◽  
Temperature Plasma ◽  
Inner Magnetosphere ◽  
Solitary Structures ◽  
Electron Acoustic

Evolution of nonlinear stationary formations in a quantum plasma at finite temperature

2021 ◽  
Vol 76 (4) ◽  
pp. 329-347
Author(s):  
Swarniv Chandra ◽  
Chinmay Das ◽  
Jit Sarkar
Keyword(s):  
Finite Temperature ◽  
Acoustic Waves ◽  
Quantum Plasma ◽  
Quantum Hydrodynamics ◽  
Stationary Structure ◽  
Gradual Evolution ◽  
Layer Structures ◽  
Model Equations ◽  
Electron Acoustic ◽  
Shock Fronts

Abstract In this paper we have studied the gradual evolution of stationary formations in electron acoustic waves at a finite temperature quantum plasma. We have made use of Quantum hydrodynamics model equations and obtained the KdV-Burgers equation. From here we showed how the amplitude modulated solitons evolve from double layer structures through shock fronts and ultimately converging into solitary structures. We have studied the various parametric influences on such stationary structure and also showed how the gradual variations of these parameter affect the transition from one form to another. The results thus obtained will help in the generation and structure of the structures in their respective domain. Much of the experiments on dense plasma will benefit from the parametric study. Further we have studied amplitude modulation followed by a detailed study on chaos.

scholarly journals 1-D particle-in-cell simulations of electron acoustic solitary structures in an electron beam-plasma

AIP Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 025029 ◽  
Author(s):  
A. A. Abid ◽  
Quanming Lu ◽  
M. N. S. Qureshi ◽  
X. L. Gao ◽  
Huayue Chen ◽  
...  
Keyword(s):  
Electron Beam ◽  
Particle In Cell ◽  
Beam Plasma ◽  
Solitary Structures ◽  
Electron Acoustic ◽  
Electron Beam Plasma

scholarly journals Collision-less shocks and solitons in dense laser-produced Fermi plasma

2020 ◽  
Vol 38 (1) ◽  
pp. 25-38
Author(s):  
J. Goswami ◽  
S. Chandra ◽  
J. Sarkar ◽  
S. Chaudhuri ◽  
B. Ghosh
Keyword(s):  
Acoustic Waves ◽  
Perturbation Technique ◽  
Reductive Perturbation Method ◽  
Viscous Force ◽  
Quantum Plasma ◽  
Linear Dispersion ◽  
Laser Plasma Interaction ◽  
Reductive Perturbation ◽  
Solitary Structures ◽  
Electron Acoustic

AbstractThe theoretical investigation of shocks and solitary structures in a dense quantum plasma containing electrons at finite temperature, nondegenerate cold electrons, and stationary ions has been carried out. A linear dispersion relation is derived for the corresponding electron acoustic waves. The solitary structures of small nonlinearity have been studied by using the standard reductive perturbation method. We have considered collisions to be absent, and the shocks arise out of viscous force. Furthermore, with the help of a standard reductive perturbation technique, a KdV–Burger equation has been derived and analyzed numerically. Under limiting cases, we have also obtained the KdV solitary profiles and studied the parametric dependence. The results are important in explaining the many phenomena of the laser–plasma interaction of dense plasma showing quantum effects.

Higher-order electron modes in a two-electron-temperature plasma

1990 ◽  
Vol 43 (2) ◽  
pp. 239-255 ◽  
Author(s):  
R. L. Mace ◽  
M. A. Hellberg
Keyword(s):  
Electron Temperature ◽  
Higher Order ◽  
Hot Electron ◽  
Temperature Plasma ◽  
Critical Curves ◽  
Higher Order Modes ◽  
Electron Acoustic Wave ◽  
Electron Acoustic ◽  
Relationship Of ◽  
The Relationship

We discuss critical curves that allow us to predict, qualitatively, the topological behaviour of higher-order modes in a two-electron-temperature plasma as wavenumber and hot electron fraction are varied. The relationship of these higher-order modes to the electron-acoustic wave is elucidated.

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