One considers a non-relativistic cold plasma containing isothermal electrons (electrons in equilibrium with the local potential), positive ions, a small amount of lighter negative ions, and negatively charged dust grains. Many years ago Watanabe (J. Phys. Soc. Japan, 53,950 (1984)) has shown that for such a plasma, without dust particles, there is a critical concentration of negative ions for which the relevant equation describing the evolution of a nonlinear ion-acoustic wave is the modified KdV equation. The same problem, of dust ion-acoustic solitons evolution, is discussed here for a dusty plasma using convenient stretched variables, for several concentrations of the light negative ions.
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Univ Bab Ezzouar, Plasma Phys Grp, Theoret Phys Lab, Fac Phys, Bab Ezzouar 16111, AlgeriaUniv Bab Ezzouar, Plasma Phys Grp, Theoret Phys Lab, Fac Phys, Bab Ezzouar 16111, Algeria
Bentabet, Karima
Tribeche, Mouloud
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Univ Bab Ezzouar, Plasma Phys Grp, Theoret Phys Lab, Fac Phys, Bab Ezzouar 16111, Algeria
Algerian Acad Sci & Technol, Algiers 16000, AlgeriaUniv Bab Ezzouar, Plasma Phys Grp, Theoret Phys Lab, Fac Phys, Bab Ezzouar 16111, Algeria
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Univ Bab Ezzouar, USTHB, Fac Phys, Dept Mat Sci, BP 32, Algiers 16111, AlgeriaUniv Bab Ezzouar, USTHB, Fac Phys, Dept Mat Sci, BP 32, Algiers 16111, Algeria
Ouazene, Mohamed
Amour, Rabia
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Univ Bab Ezzouar, Fac Phys, Theoret Phys Lab, Plasma Phys Grp, BP 32, Algiers 16111, AlgeriaUniv Bab Ezzouar, USTHB, Fac Phys, Dept Mat Sci, BP 32, Algiers 16111, Algeria
机构:
Beijing Normal Univ, Key Lab Univ Beam Technol & Mat Modificat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Key Lab Univ Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
Xie, BS
He, KF
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机构:Beijing Normal Univ, Key Lab Univ Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
He, KF
Huang, ZQ
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机构:Beijing Normal Univ, Key Lab Univ Beam Technol & Mat Modificat, Beijing 100875, Peoples R China