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

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Sabry, R. and Moslem, W. M. and El-Shamy, E. F. and Shukla, P. K. (2011) Three-dimensional nonlinear Schrodinger equation in electron-positron-ion magnetoplasmas. Physics of Plasmas, 18 (3). 032302. ISSN 1070-664X (https://doi.org/10.1063/1.3564963)

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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.

  • Item type:Article
    ID code:40553
    Dates:
    Date
    Event
    March 2011
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:25 Jul 2012 13:25
    Last modified:20 Dec 2024 15:44
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/40553
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