Modulational instability and envelope-solitons for nonlinear Alfven waves propagating along the magnetic field in cold plasmas

Technical Report · Sat Nov 01 04:00:00 EST 1975

OSTI ID:7225724

Mio, K; Ogino, T; Minami, K; Takeda, S

The modulational instability and envelope-solitons for the Alfven waves propagating along the static magnetic field in cold collisionless plasmas are analyzed using the modified nonlinear Schroedinger equation derived previously by the authors. It is shown that the modulational instability exists for a small amplitude but does not for an amplitude larger than the critical value in the case of the left-hand circularly polarized Alfven wave (left Alfven wave). On the other hand, the modulational instability does not exist for the right-hand circularly polarized Alfven wave (right Alfven wave). Without the modulational instability, the rarefactive and compressive envelope-solitons exist for the left Alfven wave and the two types of the rarefactive envelope-solitons for the right Alfven wave. (Author) (GRA)

• Research Organization: Nagoya Univ. (Japan). Inst. of Plasma Physics
• OSTI ID: 7225724
• Report Number(s): N-76-22044; IPPJ-236
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ALFVEN WAVES
COLD PLASMA
COLLISIONLESS PLASMA
DIFFERENTIAL EQUATIONS
EQUATIONS
HYDROMAGNETIC WAVES
INSTABILITY
PLASMA
PLASMA INSTABILITY
QUASI PARTICLES
SCHROEDINGER EQUATION
SOLITONS
WAVE EQUATIONS
WAVE PROPAGATION