Drift solitons and shocks in inhomogeneous quantum magnetoplasmas

Haque, Q.; Mahmood, S.
March 2008
Physics of Plasmas;Mar2008, Vol. 15 Issue 3, p034501
Academic Journal
Linear and nonlinear drift waves are studied in inhomogeneous electron-ion quantum magnetoplasma with neutrals in the background. The Korteweg–de Vries–Burgers equation is derived by using the quantum hydrodynamic model for nonlinear drift waves with quantum corrections. Both soliton and shock solutions are obtained in different limits. It is noticed that the width of the solitary hump is decreased with the increase in the quantum parameter. However this effect is reversed for the solitary dip case. It is also found that oscillatory shock wave is dependent on the quantum parameter. However, the monotonic shock formation is independent of the quantum parameter.


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