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Electrostatic dust‐acoustic envelope solitons in an electron‐depleted plasma
Author(s) -
Shikha R.K.,
Chowdhury N.A.,
Mannan A.,
Mamun A.A.
Publication year - 2021
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.202000117
Subject(s) - physics , modulational instability , dusty plasma , plasma , envelope (radar) , ion , acoustic wave , electron , instability , nonthermal plasma , nonlinear system , perturbation (astronomy) , atomic physics , mechanics , optics , quantum mechanics , telecommunications , radar , computer science
A standard nonlinear Schrödinger equation has been established by using the reductive perturbation method to investigate the propagation of electrostatic dust‐acoustic waves, and their modulational instability as well as the formation of localized electrostatic envelope solitons in an electron‐depleted unmagnetized dusty plasma system comprising opposite polarity dust grains and super‐thermal positive ions. The relevant physical plasma parameters (viz., charge, mass, number density of positive and negative dust grains, and super‐thermality of the positive ions, etc.) have rigorous impact to recognize the stability conditions of dust‐acoustic waves. The present study is useful for understanding the mechanism of the formation of dust‐acoustic envelope solitons associated with dust‐acoustic waves in the laboratory and space environments.