Nonlinear Landau damping of plasma waves with orbital angular momentum

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
D. R. Blackman ◽  
R. Nuter ◽  
Ph. Korneev ◽  
V. T. Tikhonchuk
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Plasma Waves ◽  
Landau Damping ◽  
Nonlinear Landau Damping

Observation of nonlinear Landau damping of a broad-band spectrum of electron plasma waves

1977 ◽  
Vol 20 (9) ◽  
pp. 1488 ◽  
Author(s):  
F. Gervais ◽  
J. Olivain ◽  
A. Quemeneur ◽  
G. Matthieussent
Keyword(s):  
Broad Band ◽  
Plasma Waves ◽  
Electron Plasma ◽  
Landau Damping ◽  
Band Spectrum ◽  
Nonlinear Landau Damping

Nonlinear Landau damping of a broad-band spectrum of electron plasma waves in a bounded plasma

1976 ◽  
Vol 15 (3) ◽  
pp. 371-380 ◽  
Author(s):  
G. Matthieussent
Keyword(s):  
Boundary Value Problem ◽  
Plasma Column ◽  
Broad Band ◽  
Plasma Waves ◽  
Electron Plasma ◽  
Landau Damping ◽  
Band Spectrum ◽  
Bounded Plasma ◽  
Nonlinear Landau Damping ◽  
Geometrical Effects

The nonlinear Landau damping of a broad-band spectrum of electron plasma waves propagating in a plasma column is considered.Finite geometrical effects inherent to the boundary value problem are taken into account. It is shown that nonlinear Landau damping of such a spectrum can be easily observed on a plasma column with a density of the order of 2 × 108 particles cm−3 and an electron temperature of about 3eV.

Asymmetric wave-stress tensors and wave spin

1973 ◽  
Vol 58 (4) ◽  
pp. 737-747 ◽  
Author(s):  
W. L. Jones
Keyword(s):  
Angular Momentum ◽  
Variational Principle ◽  
Orbital Angular Momentum ◽  
Total Angular Momentum ◽  
Plasma Waves ◽  
External Fields ◽  
Stress Tensors ◽  
Momentum Fluxes ◽  
Asymmetric Wave

Linearized wave-stress tensors derived from Hamilton's variational principle may be asymmetric. If interpreted as momentum fluxes, they would lead to lack of conservation of orbital angular momentum. It is shown that changes in internal angular momentum or spin of waves and torque coupling to external fields can adequately provide conservation of total angular momentum in such cases, Examples are given for acoustic, internal gravity, Rossby and plasma waves.

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