Nonlinear low frequency electromagnetic waves in a relativistic electron-positron plasma

1996 ◽  
Vol 243 (2) ◽  
pp. 427-437 ◽  
Author(s):  
N. Ya. Kotsarenko ◽  
G. A. Stewart ◽  
V. Vysloukh
Keyword(s):  
Relativistic Electron ◽  
Electromagnetic Waves ◽  
Low Frequency ◽  
Electron Positron

Weak nonlinear electromagnetic waves and low-frequency magnetic-field generation in electron-positron-ion plasmas

1988 ◽  
Vol 40 (2) ◽  
pp. 289-298 ◽  
Author(s):  
F. B. Rizzato
Keyword(s):  
Magnetic Fields ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Low Frequency ◽  
Spontaneous Generation ◽  
Magnetic Field Generation ◽  
Frequency Wave ◽  
Weakly Nonlinear ◽  
Nonlinear Localization ◽  
Electron Positron

The weakly nonlinear localization of obliquely modulated high-frequency electromagnetic waves in an electron-positron-ion plasma is considered. It is shown that the amplitude of the wave turns out to be a strongly dependent function of the angle between the slow modulations and the fast spatial variations and that the possibility appears of spontaneous generation of low-frequency magnetic fields. These magnetic fields are also functions of this angle and of the high-frequency wave polarization. The analysis of colinear modulation in electron-positron plasmas shows that some restriction must be made regarding the validity of previous calculations.

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