Behavior of linear beam-plasma instabilities in the presence of finite amplitude circularly polarized waves

AUTOR(ES)

Gomberoff, L., Hoyos, J., Brinca, A. L.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2004-12

RESUMO

We review the effect of finite amplitude circularly polarized waves on the behavior of linear ion-beam plasma instabilities. It has been shown that left-hand polarized waves can stabilize linear right-handed instabilities [1]. It has also been shown that for beam velocities capable of destabilizing left-handed waves, left-hand polarized large amplitude waves can also stabilize these waves. On the other hand, when the large amplitude wave is right-hand polarized, they can either stabilize or destabilize right-handed instabilities depending on the wave frequency and beam speed [2]. Finally, we show that the presence of large amplitude left-hand polarized waves can also trigger electrostatic ion-acoustic instabilities by forcing the phase velocities of two ion acoutic waves to become equal, above a threshold amplitude value.

Documentos Relacionados

• Eletrostatic waves driven by electron beam-plasma interaction in some regions of space plasmas: a treatment by particle simulation
• Ondas eletrostaticas geradas por interacao de feixe de eletrons-plasma em algumas regioes de plasma espacial: um tratamento por simulacao via particulas
• Ondas eletrostaticas geradas por interacao de feixe de eletrons-plasma em algumas regioes de plasma espacial: um tratamento por simulacao via particulas
• Existence for large times of finite amplitude elastic waves arising from small disturbances
• Evolution for finite amplitude of baroclinic waves in the atmosphere and the ocean