Three-dimensional nonlinear Schrodinger equation in electron-positron-ion magnetoplasmas

R. Sabry, W. M. Moslem, E. F. El-Shamy, P. K. Shukla

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Three-dimensional ion-acoustic envelope soliton excitations in electron-positron-ion magnetoplasmas are interpreted. This is accomplished through the derivation of three-dimensional nonlinear Schrodinger equation, where the nonlinearity is balancing with the dispersive terms. The latter contains both an external magnetic field besides the usual plasma parameter effects. Based on the balance between the nonlinearity and the dispersion terms, the regions for possible envelope solitons are investigated indicating that new regimes for modulational instability of envelope ion-acoustic waves could be obtained, which cannot exist in the unmagnetized case. This will allow us to establish additional new regimes, different from the usual unmagnetized plasma, for envelope ion-acoustic waves to propagate in multicomponent plasma that may be observed in space or astrophysics.
LanguageEnglish
Article number032302
JournalPhysics of Plasmas
Volume18
Issue number3
DOIs
Publication statusPublished - Mar 2011

Fingerprint

nonlinear equations
positrons
envelopes
ion acoustic waves
ions
electrons
solitary waves
nonlinearity
astrophysics
derivation
acoustics
magnetic fields
excitation

Keywords

  • ultraintense lasers
  • pair production
  • plasma
  • double-layers
  • femtosecond-laser
  • modulation
  • solitons
  • perturbation method
  • electromagnetic-wave
  • solitary waves
  • three-dimensional
  • nonlinear schrodinger equation
  • electron-positron-ion magnetoplasmas
  • magnetoplasmas

Cite this

Sabry, R. ; Moslem, W. M. ; El-Shamy, E. F. ; Shukla, P. K. / Three-dimensional nonlinear Schrodinger equation in electron-positron-ion magnetoplasmas. In: Physics of Plasmas. 2011 ; Vol. 18, No. 3.
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abstract = "Three-dimensional ion-acoustic envelope soliton excitations in electron-positron-ion magnetoplasmas are interpreted. This is accomplished through the derivation of three-dimensional nonlinear Schrodinger equation, where the nonlinearity is balancing with the dispersive terms. The latter contains both an external magnetic field besides the usual plasma parameter effects. Based on the balance between the nonlinearity and the dispersion terms, the regions for possible envelope solitons are investigated indicating that new regimes for modulational instability of envelope ion-acoustic waves could be obtained, which cannot exist in the unmagnetized case. This will allow us to establish additional new regimes, different from the usual unmagnetized plasma, for envelope ion-acoustic waves to propagate in multicomponent plasma that may be observed in space or astrophysics.",
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Three-dimensional nonlinear Schrodinger equation in electron-positron-ion magnetoplasmas. / Sabry, R.; Moslem, W. M.; El-Shamy, E. F.; Shukla, P. K.

In: Physics of Plasmas, Vol. 18, No. 3, 032302, 03.2011.

Research output: Contribution to journalArticle

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T1 - Three-dimensional nonlinear Schrodinger equation in electron-positron-ion magnetoplasmas

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AU - El-Shamy, E. F.

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AB - Three-dimensional ion-acoustic envelope soliton excitations in electron-positron-ion magnetoplasmas are interpreted. This is accomplished through the derivation of three-dimensional nonlinear Schrodinger equation, where the nonlinearity is balancing with the dispersive terms. The latter contains both an external magnetic field besides the usual plasma parameter effects. Based on the balance between the nonlinearity and the dispersion terms, the regions for possible envelope solitons are investigated indicating that new regimes for modulational instability of envelope ion-acoustic waves could be obtained, which cannot exist in the unmagnetized case. This will allow us to establish additional new regimes, different from the usual unmagnetized plasma, for envelope ion-acoustic waves to propagate in multicomponent plasma that may be observed in space or astrophysics.

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