Nonlinear wavepackets in pair-ion and electron-positron-ion plasmas

Ioannis Kourakis, A. Esfandyari-Kalejahi, Padma Kant Shukla, Frank Verheest, Neil F. Cramer

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

Abstract

The occurrence of amplitude-modulated electrostatic and electromagnetic
wavepackets in pair plasmas is investigated. A static additional charged background species is considered, accounting for dust defects or for heavy ion
presence in the background. Relying on a two-fluid description, a nonlinear
Schrodinger type evolution equation is obtained and analyzed, in terms of the
slow dynamics of the wave amplitude. Exact envelope excitations are obtained,
modelling envelope pulses or holes, and their characteristics are discussed.
Original languageEnglish
Title of host publicationNew Aspects of Plasma Physics
Subtitle of host publicationProceedings of the 2007 ICTP Summer College on Plasma Physics Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, 30 July – 24 August 2007 Edited by: Padma K Shukla (Ruhr-Universität Bochum, Germany), Edited by: Lennart Stenflo (Umeå University, Sweden), Edited by: Bengt Eliasson (Umeå University, Sweden)
PublisherWorld Scientific, Singapore
ISBN (Print)978-981-279-977-7 (hardcover)
Publication statusPublished - 2008

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