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Title: Interlaced linear-nonlinear wave propagation in a warm multicomponent plasma

Linear and nonlinear propagations of arbitrary amplitude nonlinear structures, viz. solitons, double layers, and supersolitons are investigated in multicomponent plasma consisting of warm ions, two temperature nonthermal electrons and hot nonthermal positrons. The Sagdeev pseudopotential approach is employed to obtain the energy integral equation in such a multicomponent plasma using fluid theory. The effects of several plasma parameters on the ion acoustic solitons, double layers, and supersolitons are analyzed. It is found that the present system supports the coexistence of arbitrary amplitude positive and negative potential solitons in a certain region of parameter space in addition to compressive and rarefactive double layers. Furthermore, numerical calculations reveal that these structures may exist either in supersonic or subsonic regimes. Also, the present plasma system supports supersolitonic structure in supersonic regime.
Authors:
 [1] ;  [2] ;  [3]
  1. Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata 700108 (India)
  2. Department of Mathematics, Hooghly Mohsin College, Chinsurah, Hooghly 712101 (India)
  3. Department of Mathematics, West Bengal State University, Barasat, Kolkata 700126 (India)
Publication Date:
OSTI Identifier:
22403343
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 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; AMPLITUDES; ELECTRONS; IONS; NONLINEAR PROBLEMS; PLASMA; POSITRONS; SOLITONS; WAVE PROPAGATION