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Dark and grey electromagnetic electron-cyclotron envelope solitons in an electron-positron magnetoplasma
Umeå University, Faculty of Science and Technology, Department of Physics.
Scottish Universities Physics Alliance (SUPA), Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK.
Scottish Universities Physics Alliance (SUPA), Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK.
Umeå University, Faculty of Science and Technology, Department of Physics. (Department of Physics, Linköping University, Linköping, Sweden)
2009 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 75, no 5, 575-580 p.Article in journal (Refereed) Published
Abstract [en]

We present an investigation of the amplitude modulation of an external magnetic field-aligned right-hand circularly polarized electromagnetic electron-cyclotron (EMEC) wave in a strongly magnetized electron-positron plasma. It is shown that the dynamics of the modulated EMEC wave packet is governed by a cubic nonlinear Schrödinger equation. The latter reveals that a modulated wave packet can propagate in the form of either a dark or a grey envelope soliton. This result could have relevance to the transport of electromagnetic wave energy over long distances via envelope solitons in the magnetospheres of pulsars and magnetars.

Place, publisher, year, edition, pages
Cambridge University Press, 2009. Vol. 75, no 5, 575-580 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-30458DOI: 10.1017/S0022377809990092OAI: oai:DiVA.org:umu-30458DiVA: diva2:283531
Available from: 2009-12-29 Created: 2009-12-29 Last updated: 2017-12-12Bibliographically approved

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Shukla, PadmaStenflo, Lennart

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