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Effects of higher order nonlinearity on the propagation of solitary waves in relativistic ion drift plasma

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2 Author(s)
Karmakar, B. ; Dept. of Math., Jadavpur Univ., Calcutta, India ; Bera, B.

The effects of higher-order nonlinearity, relativistically drifting ions, and negative ions on the ion-acoustic solitons in a plasma having isothermal electrons are investigated theoretically. By applying the reductive perturbation technique to the basic system of equations, a modified Korteweg-de Vries equations and a linear inhomogeneous wave equation have been derived. Moreover, stationary solutions of the coupled field equations have been obtained. A scenario is presented where the higher-order perturbed terms containing relativistic effects change the behavior of the solitons drastically. Results have been compared with those evaluated earlier for plasmas without negative ions and higher-order nonlinearity

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Plasma Science, IEEE Transactions on  (Volume:20 ,  Issue: 6 )