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- Shukla, Padma, et al.
(författare)
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Letter: Dark and grey electromagnetic electron-cyclotron envelope solitons in an electron-positron magnetoplasma
- 2009
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Ingår i: Journal of Plasma Physics. - : Cambridge University Press. - 0022-3778 .- 1469-7807. ; 75:5, s. 575-580
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- 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.
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