Excitation of the dust ion-acoustic and dust acoustic-like perturbations by plasma density ripples

P.K. Shukla

Research output: Contribution to journalArticle

Abstract

It is shown that the dust ion-acoustic (DIA) and dust acoustic (DA)-like perturbations can be excited by the electron density and ion density ripples, respectively. For this purpose, we use the relevant equations for the DIA and DA-like disturbances and derive the standard Mathieu equation. The latter admits unstable solutions, demonstrating that both the DIA and DA-like mode can be driven on account of the free energy in the plasma density ripples.
LanguageEnglish
Pages1768-1770
Number of pages2
JournalPhysics Letters A
Volume373
Issue number20
DOIs
Publication statusPublished - 27 Apr 2009

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ripples
plasma density
dust
perturbation
acoustics
excitation
ions
Mathieu function
disturbances
free energy

Keywords

  • waves
  • dust ion-acoustic
  • dust acoustic-like
  • plasma
  • density ripples

Cite this

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abstract = "It is shown that the dust ion-acoustic (DIA) and dust acoustic (DA)-like perturbations can be excited by the electron density and ion density ripples, respectively. For this purpose, we use the relevant equations for the DIA and DA-like disturbances and derive the standard Mathieu equation. The latter admits unstable solutions, demonstrating that both the DIA and DA-like mode can be driven on account of the free energy in the plasma density ripples.",
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Excitation of the dust ion-acoustic and dust acoustic-like perturbations by plasma density ripples. / Shukla, P.K.

In: Physics Letters A, Vol. 373, No. 20, 27.04.2009, p. 1768-1770.

Research output: Contribution to journalArticle

TY - JOUR

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PY - 2009/4/27

Y1 - 2009/4/27

N2 - It is shown that the dust ion-acoustic (DIA) and dust acoustic (DA)-like perturbations can be excited by the electron density and ion density ripples, respectively. For this purpose, we use the relevant equations for the DIA and DA-like disturbances and derive the standard Mathieu equation. The latter admits unstable solutions, demonstrating that both the DIA and DA-like mode can be driven on account of the free energy in the plasma density ripples.

AB - It is shown that the dust ion-acoustic (DIA) and dust acoustic (DA)-like perturbations can be excited by the electron density and ion density ripples, respectively. For this purpose, we use the relevant equations for the DIA and DA-like disturbances and derive the standard Mathieu equation. The latter admits unstable solutions, demonstrating that both the DIA and DA-like mode can be driven on account of the free energy in the plasma density ripples.

KW - waves

KW - dust ion-acoustic

KW - dust acoustic-like

KW - plasma

KW - density ripples

UR - http://dx.doi.org/10.1016/j.physleta.2009.03.024

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T2 - Physics Letters A

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SN - 0375-9601

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