Nonlinear ion acoustic waves in a strongly coupled plasma subject to external electric field

1995 ◽  
Vol 51 (6) ◽  
pp. 769-774 ◽  
Author(s):  
M A Berkovsky
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Acoustic Waves ◽  
Ion Acoustic Waves ◽  
Strongly Coupled ◽  
Ion Acoustic ◽  
Strongly Coupled Plasma

Ion acoustic waves in expanding strongly coupled plasmas

2013 ◽  
Vol 79 (6) ◽  
pp. 1063-1066 ◽  
Author(s):  
J. T. MENDONÇA ◽  
N. SHUKLA ◽  
D. P. RESENDES ◽  
A. SERBETO
Keyword(s):  
Acoustic Waves ◽  
Temporal Change ◽  
Wave Mode ◽  
Mode Structure ◽  
Plasma Parameters ◽  
Ion Acoustic Waves ◽  
Strongly Coupled ◽  
Ultracold Plasmas ◽  
Ion Acoustic ◽  
Coupled Plasmas

AbstractWe consider the excitation and dispersion of ion acoustic waves in expanding ultracold plasmas, taking into account the influence of boundary conditions. A cylindrical plasma geometry is assumed. We show that temporal changes in the medium lead to a wave frequency shift, associated with an evolving radial and standing wave mode structure, and to the temporal change of the background plasma parameters. A non-collisional model for the cylindrical geometry is also proposed.

The Effect of Decreasing Reflection Coefficient of Ion Acoustic Waves Using an Altemative Electric Field

1982 ◽  
Vol 10 (2) ◽  
pp. 135-136 ◽  
Author(s):  
E. M. Barkhudarov ◽  
A. Sh. Dzagnidze ◽  
V. F. Ligin ◽  
D. D. Tskhakaya
Keyword(s):  
Reflection Coefficient ◽  
Electric Field ◽  
Acoustic Waves ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Influence of High Frequency Electric Field on the Dispersion of Ion-Acoustic Waves in Plasma

1981 ◽  
Vol 36 (1) ◽  
pp. 17-22
Author(s):  
A. Turky ◽  
M. Čerček ◽  
R. Tavzes J. Stefan
Keyword(s):  
Electric Field ◽  
Acoustic Waves ◽  
High Frequency ◽  
Wave Dispersion ◽  
Plasma Stream ◽  
Ion Acoustic Waves ◽  
Ion Acoustic Wave ◽  
High Frequency Electric Field ◽  
Ion Acoustic ◽  
Frequency Electric Field

The modification of the ion-acoustic wave dispersion under the action of a high frequency electric field was studied experimentally, the wave propagating along and against the plasma stream. The frequency of the field amounted to approximately half the electron plasma frequency. It was found that the phase velocity of the ion wave and the plasma drift velocity decrease as the effective high frequency field power increases

scholarly journals Influences of shear in the ion parallel drift velocity and of inhomogeneous perpendicular electric field on generation of oblique ion acoustic waves

2016 ◽  
Vol 121 (3) ◽  
pp. 2693-2703 ◽  
Author(s):  
Askar Ilyasov ◽  
Alexander Chernyshov ◽  
Mikhail Mogilevsky ◽  
Irina Golovchanskaya ◽  
Boris Kozelov
Keyword(s):  
Electric Field ◽  
Drift Velocity ◽  
Acoustic Waves ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Ion-acoustic waves and radio aurora

1970 ◽  
Vol 48 (16) ◽  
pp. 1863-1873 ◽  
Author(s):  
D. R. McDiarmid
Keyword(s):  
Acoustic Wave ◽  
Electric Field ◽  
Acoustic Waves ◽  
Polarization Field ◽  
Wave Instability ◽  
Ion Acoustic Waves ◽  
Ion Acoustic Wave ◽  
Proposed Model ◽  
Ion Acoustic

A previously proposed model of radio aurora is developed further and is used to relate and explain data obtained during an event described by Hofstee and Forsyth. The basis of the model is the two-stream, ion-acoustic wave instability. Although the model explains this particular event very well, attempts to apply it to certain other experimental situations have resulted in unresolved difficulties. These are discussed briefly.During the Hofstee and Forsyth event a geomagnetic bay was observed north of the scattering region. An explanation of this bay using the electric field deduced from the radio backscatter data required the assumption of a polarization field within the band of enhanced plasma associated with the visual aurora present at the same location (Boström's model 1).

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