Dust-acoustic waves modulational instability and rogue waves in a polarized dusty plasma

2015 ◽  
Vol 22 (10) ◽  
pp. 103703 ◽  
Author(s):  
Omar Bouzit ◽  
Mouloud Tribeche
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Modulational Instability ◽  
Rogue Waves ◽  
Dust Acoustic Waves ◽  
Dust Acoustic

scholarly journals Breather Structures and Peregrine Solitons in a Polarized Space Dusty Plasma

2020 ◽  
Vol 8 ◽  
Author(s):  
Kuldeep Singh ◽  
N. S. Saini
Keyword(s):  
Dusty Plasma ◽  
Theoretical Investigation ◽  
Acoustic Waves ◽  
Schrodinger Equation ◽  
Rogue Waves ◽  
Nonlinear Schrodinger Equation ◽  
Combined Effects ◽  
Dust Acoustic Waves ◽  
Polarization Force ◽  
Dust Acoustic

In this theoretical investigation, we have examined the combined effects of nonthermally revamped polarization force on modulational instability MI of dust acoustic waves DAWs and evolution of different kinds of dust acoustic (DA) breathers in a dusty plasma consisting of negatively charged dust as fluid, Maxwellian electrons, and ions obeying Cairns’ nonthermal distribution. The nonthermality of ions has considerably altered the strength of polarization force. By employing the multiple-scale perturbation technique, the nonlinear Schrödinger equation NLSE is derived to study modulational MI instability of dust acoustic waves DAWs. It is noticed that influence of the polarization force makes the wave number domain narrow where MI sets in. The rational solutions of nonlinear Schrödinger equation illustrate the evolution of DA breathers, namely, Akhmediev breather, Kuznetsov–Ma breather, and Peregrine solitons (rogue waves). Further, the formation of super rogue waves due to nonlinear superposition of DA triplets rogue waves is also discussed. It is analyzed that combined effects of variation in the polarization force and nonthermality of ions have a comprehensive influence on the evolution of different kinds of DA breathers. It is remarked that outcome of present theoretical investigation may provide physical insight into understanding the role of nonlinear phenomena for the generation of various types of DA breathers in experiments and different regions of space (e.g., the planetary spoke and cometary tails).

scholarly journals Modulational Interaction in a Dusty Plasma of Meteoroid Wakes

2021 ◽  
Vol 61 (6) ◽  
pp. 888-895
Author(s):  
T. I. Morozova ◽  
S. I. Popel
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Electromagnetic Waves ◽  
Modulation Instability ◽  
Modulational Instability ◽  
Dust Particles ◽  
Frequency Noise ◽  
Dust Acoustic Waves ◽  
Dust Acoustic ◽  
Modulational Interaction

Abstract This is a study of the possible modulational instability of electromagnetic waves in meteoroid wakes associated with the dust acoustic mode at altitudes of 80–120 km, which is a linear stage of modulational interaction. The parameters of meteoroid wakes at different altitudes in the Earth’s ionosphere are considered. It is shown that the charging of dust particles of meteoric matter creates conditions for the occurrence of dust acoustic waves. Dust acoustic disturbances are excited due to the modulational instability of electromagnetic waves from the meteoric trail. The influence of neutrals on the development of modulational interaction is taken into account. The concentration of neutrals in meteoric wakes is higher than the concentration of neutrals in the Earth’s ionosphere. It has been found that the condition for the excitation of a dust acoustic wave is satisfied for the typical parameters of dusty plasma of meteoroid wakes at altitudes of 100–120 km. Due to collisions between dust and neutrals, the development of modulation instability is suppressed at altitudes of 80–90 km, while inelastic collisions of neutrals with electrons and ions do not affect the development of modulational instability. The modulational instability of electromagnetic waves can explain the occurrence of low-frequency noise during the passage of meteoric bodies in a frequency range characteristic of dust acoustic waves. It is shown that the modulation instability has time to develop for characteristic temperatures and particle concentrations in meteoroid wakes. Equations for the charging of dust particles in meteoroid wakes are given. It has been found that the dust is positively charged, both in the daytime and at night, due to intense emission currents from the surface of dust particles.

Nonlinear dust acoustic waves in an inhomogeneous magnetized quantum dusty plasma

2021 ◽  
pp. 1-16
Author(s):  
A. Atteya ◽  
M. A. El-Borie ◽  
G. D. Roston ◽  
A. S. El-Helbawy
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Dust Acoustic Waves ◽  
Dust Acoustic

Excitation of Dust-Acoustic Waves in a DC Glow-Discharge Dusty Plasma by Means of Pulsed Gasdynamic Stimulation

2004 ◽  
Vol 42 (5) ◽  
pp. 659-666 ◽  
Author(s):  
M. Yu. Pustyl'nik ◽  
V. M. Torchinskii ◽  
V.I. Molotkov ◽  
A. G. Khrapak ◽  
A. V. Chernyshev ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Dusty Plasma ◽  
Acoustic Waves ◽  
Dc Glow Discharge ◽  
Dust Acoustic Waves ◽  
Dust Acoustic

Dust-acoustic waves in a magnetized dusty plasma

1998 ◽  
Vol 5 (3) ◽  
pp. 828-829 ◽  
Author(s):  
M. Salimullah ◽  
M. Salahuddin
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Dust Acoustic Waves ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic
Sign in / Sign up

Export Citation Format

Share Document