Nonlinear evolution of obliquely propagating Langmuir wave

Journal Article · Sun Apr 18 23:00:00 EST 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.1104· OSTI ID:5183124

Menyuk, C R; Dawson, J M; Decyk, V K; Fried, B D; Morales, G J

A wave propagating obliquely with respect to a magnetic field has many resonances, located at v/sub parallel/ = (..omega..-n..cap omega..)/k/sub parallel/. When they overlap, there is a transition between regular and stochastic particle motion, leading to a strong decrease in the final wave amplitude. Simulations confirm this result. In the regime where particle motion is regular, the usual trapping oscillations disappear as the angle of propagation increases, because of phase mixing of the bounce frequencies in different resonances.

• Research Organization: Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742
• DOE Contract Number: AM03-76SF00010
• OSTI ID: 5183124
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
AMPLITUDES
BOLTZMANN STATISTICS
DATA
HOMOGENEOUS PLASMA
INFORMATION
MAGNETIZATION
NONLINEAR PROBLEMS
NUMERICAL DATA
PLASMA
PLASMA WAVES
RESONANCE
SIMULATION
THEORETICAL DATA