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- Title
Dust acoustic solitary waves in dusty plasma with nonuniform temperature.
- Authors
Pakzad, Hamid Reza
- Abstract
In this paper, the dust acoustic wave is studied in conditions where the dust temperature is not constant. This model includes negatively charged dust particles and thermal ions. The reductive perturbation technique is used and the new point in this study is the nonuniformity of the plasma temperature. The nonconstancy of the temperature is entered as a first-order perturbation in the calculations, and finally the modified Korteweg–de Vries (mKdV) equation is derived. The solution of the modified KdV equation clarifies the change in soliton shape of the wave when it moves in the perturbation plasma. We show how the soliton wave undergoes deformation and amplitude reduction during propagation when it encounters a region with a different temperature. The output of this research can be effective to better understand the wave behavior in a real plasma with nonuniform temperature.
- Subjects
PLASMA temperature; DUSTY plasmas; SOUND waves; PLASMA waves; PLASMA oscillations; DUST; FUSION reactors
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2024, Vol 38, Issue 17, p1
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979224502229