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URN: urn:nbn:de:kobv:517-opus-14851
URL: http://opus.kobv.de/ubp/volltexte/2007/1485/


Volosevich, Alexandra V. ; Meister, Claudia-Veronika

Nonlinear interaction of Farley-Buneman waves

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Kurzfassung auf Englisch

The nonlinear interaction of waves excited by the modified two-stream instability (Farley-Buneman instability) is considered. It is found that, during the linear stage of wave growth, the enhanced pressure of the high-frequency part of the waves locally generates a ponderomotive force. This force acts on the plasma particles and redistributes them. Thus an additional electrostatic polarization field occurs, which influences the low-frequency part of the waves. Then, the low-frequency waves also cause a redistribution of the high-frequency
waves. In the paper, a self-consistent system of equations is obtained, which describes the nonlinear interaction of the waves. It is shown that the considered mechanism of wave interaction causes a nonlinear stabilization of the high-frequency waves’ growth and a formation of local density structures of the charged particles. The density modifications of the charged particles
during the non-linear stage of wave growth and the possible interval of aspect angles of the high-frequency waves are estimated.

Institut 1: Institut für Physik und Astronomie
Institut 2: Interdisziplinäres Zentrum Dynamik komplexer Systeme
DDC-Sachgruppe: Physik
Dokumentart: c Preprint (Vorabdruck)
Schriftenreihe: NLD Preprints
Band Nummer: paper 052
Sprache: Englisch
Erstellungsjahr: 1998
Publikationsdatum: 31.07.2007


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