Evidence for Langmuir wave collapse in the interplanetary plasma

1992 ◽  
Vol 19 (12) ◽  
pp. 1303-1306 ◽  
Author(s):  
Paul J. Kellogg ◽  
K. Goetz ◽  
R. L. Howard ◽  
S. J. Monson
Keyword(s):  
Langmuir Wave ◽  
Wave Collapse ◽  
Interplanetary Plasma

Impossibility of Zakharov's short-wavelength modulational instability in plasmas with intense Langmuir turbulence

2002 ◽  
Vol 68 (1) ◽  
pp. 1-25 ◽  
Author(s):  
V. I. EROFEEV
Keyword(s):  
Experimental Data ◽  
Short Wavelength ◽  
Modulational Instability ◽  
Langmuir Wave ◽  
Traditional Theory ◽  
Langmuir Turbulence ◽  
Wave Dissipation ◽  
Physical Reason ◽  
Electron Diffusion ◽  
Wave Collapse

An analysis of two experimental observations of Langmuir wave collapse is performed. The corresponding experimental data are shown as evidence against the occurrence of collapses. The physical reason preventing the collapses is found to be the nonresonant electron diffusion in momentum. In this process, plasma thermal electrons are efficiently heated at the expense of wave energy, therefore intense collisionless wave dissipation takes place. The basic reason for the underestimation of nonresonant electron diffusion in the traditional theory is shown to be the substitution of a real plasma by a plasma probabilistic ensemble.A study of nonresonant electron diffusion refraining from ensemble substitution is performed. It is shown that its intensity is sufficient for suppression of Zakharov's short-wavelength modulational plasma instability [Zakharov, V. E., Sov. Phys. JETP35, 908 (1972)]. This explains the nonoccurrence of Zakharov's Langmuir wave collapse in experiments.

Experimental investigations of second‐harmonic spectra and Langmuir wave collapse

1991 ◽  
Vol 3 (9) ◽  
pp. 2558-2567 ◽  
Author(s):  
Faiz Dahmani ◽  
Djamel Ghobrini ◽  
Malek EL‐Mahdaoui
Keyword(s):  
Second Harmonic ◽  
Langmuir Wave ◽  
Experimental Investigations ◽  
Wave Collapse

Langmuir wave collapse with anisotropic contraction rates

1990 ◽  
Vol 42 (8) ◽  
pp. 4962-4971 ◽  
Author(s):  
Luc Bergé ◽  
Guy Pelletier ◽  
Denis Pesme
Keyword(s):  
Langmuir Wave ◽  
Wave Collapse

scholarly journals Arrest of Langmuir wave collapse by quantum effects

2009 ◽  
Vol 80 (5) ◽  
Author(s):  
G. Simpson ◽  
C. Sulem ◽  
P. L. Sulem
Keyword(s):  
Langmuir Wave ◽  
Quantum Effects ◽  
Wave Collapse

THE INSTABILITY OF ON-DIMENSIONAL LANGMUIR WAVE. SOLITONS AND COLLAPSE

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-631-C7-632
Author(s):  
N. S. Buchelnikova ◽  
E. P. Matochkin
Keyword(s):  
Langmuir Wave

Wave collapse

1988 ◽  
Vol 155 (7) ◽  
pp. 529-533 ◽  
Author(s):  
Vladimir E. Zakharov
Keyword(s):  
Wave Collapse
Sign in / Sign up

Export Citation Format

Share Document