Ion-acoustic soliton-like waves undergoing Landau damping

2005 ◽  
Vol 343 (5) ◽  
pp. 397-402 ◽  
Author(s):  
Yoshifumi Saitou ◽  
Yoshiharu Nakamura
Keyword(s):  
Landau Damping ◽  
Ion Acoustic ◽  
Ion Acoustic Soliton

Propagation characteristics and reflection of an ion-acoustic soliton in an inhomogeneous plasma having warm ions

1989 ◽  
Vol 41 (1) ◽  
pp. 185-197 ◽  
Author(s):  
Sanjay Singh ◽  
R. P. Dahiya
Keyword(s):  
Inhomogeneous Plasma ◽  
Landau Damping ◽  
Propagation Characteristics ◽  
Ion Temperature ◽  
Reflected Wave ◽  
Ion Acoustic ◽  
Soliton Amplitude ◽  
Ion Acoustic Soliton ◽  
Local Speed ◽  
Peak Value

The problem of propagation of an ion-acoustic soliton and its reflection in a weakly inhomogeneous plasma is considered, taking into account the effect of finite ion temperature. A reductive perturbation analysis is carried out to obtain expressions for the local speed, amplitude and width of the soliton. The peak value of the soliton amplitude increases and the soliton width decreases with increasing ion temperature. An equation describing the dependence of the reflected-wave amplitude on ion temperature is obtained. The amplitude of the reflected wave is observed to decrease with increasing ion temperature on account of Landau damping.

Dust–ion–acoustic soliton in an inhomogeneous collisional plasma

2004 ◽  
Vol 11 (4) ◽  
pp. 1366-1371 ◽  
Author(s):  
Yang-fang Li ◽  
J. X. Ma ◽  
Jing-ju Li
Keyword(s):  
Collisional Plasma ◽  
Ion Acoustic ◽  
Ion Acoustic Soliton

Local kinetic analysis of low-frequency electrostatic modes in tokamaks

1991 ◽  
Vol 69 (2) ◽  
pp. 102-106
Author(s):  
A. Hirose
Keyword(s):  
Dispersion Relation ◽  
Kinetic Analysis ◽  
Low Frequency ◽  
Acoustic Mode ◽  
Landau Damping ◽  
Trapped Electrons ◽  
Ion Acoustic ◽  
Transit Frequency

Analysis, based on a local kinetic dispersion relation in the tokamak magnetic geometry incorporating the ion transit frequency and trapped electrons, indicates that modes with positive frequencies are predominant. Unstable "drift"-type modes can have frequencies well above the diamagnetic frequency. They have been identified as the destabilized ion acoustic mode suffering little ion Landau damping even when [Formula: see text].

scholarly journals Ion Acoustic Peregrine Soliton Under Enhanced Dissipation

2021 ◽  
Vol 8 ◽  
Author(s):  
Pallabi Pathak
Keyword(s):  
Acoustic Wave ◽  
Negative Ions ◽  
Landau Damping ◽  
Ion Acoustic Wave ◽  
Multicomponent Plasma ◽  
Plasma Device ◽  
Ion Acoustic ◽  
Damping Rate ◽  
Double Plasma Device ◽  
Spatial Damping

The effect of enhanced Landau damping on the evolution of ion acoustic Peregrine soliton in multicomponent plasma with negative ions has been investigated. The experiment is performed in a multidipole double plasma device. To enhance the ion Landau damping, the temperature of the ions is increased by applying a continuous sinusoidal signal of frequency close to the ion plasma frequency ∼1 MHz to the separation grid. The spatial damping rate of the ion acoustic wave is measured by interferometry. The damping rate of ion acoustic wave increases with the increase in voltage of the applied signal. At a higher damping rate, the Peregrine soliton ceases to show its characteristics leaving behind a continuous envelope.

Experimental Srudy of an Ion-Acoustic Soliton with Dissipation

1989 ◽  
Vol 58 (2) ◽  
pp. 504-510 ◽  
Author(s):  
Hideo Kozima ◽  
Keiichiro Yamagiwa ◽  
Tsutomu Tanaka ◽  
Hiroyuki Matsubara ◽  
Hideto Yoshino
Keyword(s):  
Ion Acoustic ◽  
Ion Acoustic Soliton

New insights on fast ion-acoustic soliton stopbands and extension to dusty plasmas

2020 ◽  
Vol 27 (3) ◽  
pp. 032306 ◽  
Author(s):  
S. K. Maharaj ◽  
R. Bharuthram
Keyword(s):  
Dusty Plasmas ◽  
Ion Acoustic ◽  
Ion Acoustic Soliton ◽  
Fast Ion
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