Bandpass signal formulation with hybrid implicit‐explicit procedure in open regions for unmagnetized plasma

2021 ◽  
Author(s):  
Peiyu Wu ◽  
Xin Wang ◽  
Yongjun Xie ◽  
Haolin Jiang ◽  
Toshiaki Natsuki
Keyword(s):  
Explicit Procedure ◽  
Unmagnetized Plasma

Parametric excitation in an inhomogeneous plasma

1971 ◽  
Vol 5 (1) ◽  
pp. 107-113 ◽  
Author(s):  
C. S. Chen
Keyword(s):  
Electric Field ◽  
Parametric Excitation ◽  
Growth Rates ◽  
Inhomogeneous Plasma ◽  
Electron Plasma ◽  
Transverse Waves ◽  
Circularly Polarized ◽  
Polarized Waves ◽  
Oscillating Electric Field ◽  
Unmagnetized Plasma

An infinite, inhomogeneous electron plasma driven by a spatially uniform oscillating electric field is investigated. The multi-time perturbation method is used to analyze possible parametric excitations of transverse waves and to evaluate their growth rates. It is shown that there exist subharmonic excitations of: (1) a pair of transverse waves in an unmagnetized plasma and (2) a pair of one right and one left circularly polarized wave in a magnetoplasma. Additionally, parametric excitation of two right or two left circularly polarized waves with different frequencies can exist in a magnetoplasma. The subharmonic excitations are impossible whenever the density gradient and the applied electric field are perpendicular. However, parametric excitation is possible with all configurations.

scholarly journals Current collection by an active spherical electrode in an unmagnetized plasma

1992 ◽  
Vol 4 (12) ◽  
pp. 3847-3855 ◽  
Author(s):  
E. Ahedo ◽  
M. Martínez‐Sánchez ◽  
J. R. Sanmartín
Keyword(s):  
Current Collection ◽  
Spherical Electrode ◽  
Unmagnetized Plasma

scholarly journals Diamagnetic region(s): structure of the unmagnetized plasma around Comet 67P/CG

2017 ◽  
Vol 469 (Suppl_2) ◽  
pp. S372-S379 ◽  
Author(s):  
P. Henri ◽  
X. Vallières ◽  
R. Hajra ◽  
C. Goetz ◽  
I. Richter ◽  
...  
Keyword(s):  
Unmagnetized Plasma ◽  
Comet 67P

Construction of solitary wave solutions to the nonlinear modified Kortewege-de Vries dynamical equation in unmagnetized plasma via mathematical methods

2018 ◽  
Vol 33 (32) ◽  
pp. 1850183 ◽  
Author(s):  
Mujahid Iqbal ◽  
Aly R. seadawy ◽  
Dianchen Lu
Keyword(s):  
Solitary Wave ◽  
Electrostatic Potential ◽  
Graphical Representation ◽  
Perturbation Technique ◽  
Mathematic Model ◽  
Auxiliary Equation ◽  
Solitary Wave Solutions ◽  
Wave Solutions ◽  
De Vries ◽  
Unmagnetized Plasma

In this research, we consider the propagation of one-dimensional nonlinear behavior in a unmagnetized plasma. By using the reductive perturbation technique to formulate the nonlinear mathematic model which is modified Kortewege-de Vries (mKdV), we apply the extended form of two methods, which are extended auxiliary equation mapping and extended direct algebraic methods, to investigate the new families of electron-acoustic solitary wave solutions of mKdV. These new exact traveling and solitary wave solutions which represent the electrostatic potential for mKdV and also the graphical representation of electrostatic potential are shown with the aid of Mathematica.

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