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Title: Instability of nonplanar modulated dust acoustic wave packets in a strongly coupled nonthermal dusty plasma

Cylindrical and spherical amplitude modulations of dust acoustic (DA) solitary wave envelopes in a strongly coupled dusty plasma containing nonthermal distributed ions are studied. Employing a reductive perturbation technique, a modified nonlinear Schrödinger equation including the geometrical effect is derived. The influences of nonthermal ions, polarization force, and the geometries on the modulational instability conditions are analyzed and the possible rogue wave structures are discussed in detail. It is found that the spherical DA waves are more structurally stable to perturbations than the cylindrical ones. Possible applications of these theoretical findings are briefly discussed.
Authors:
;  [1] ;  [1] ;  [2]
  1. Department of Physics, Faculty of Science, Damietta University, New Damietta, P.O. 34517 (Egypt)
  2. (Saudi Arabia)
Publication Date:
OSTI Identifier:
22490994
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CYLINDRICAL CONFIGURATION; DUSTS; FREQUENCY MODULATION; IONS; NONLINEAR PROBLEMS; PERTURBATION THEORY; PLASMA INSTABILITY; POLARIZATION; SCHROEDINGER EQUATION; SOUND WAVES; SPHERICAL CONFIGURATION; WAVE PACKETS