Nonlinear structures: Explosive, soliton, and shock in a quantum electron-positron-ion magnetoplasma

作者：Sabry R^*; Moslem W M; Haas F; Ali S; Shukla P K

来源：Physics of Plasmas, 2008, 15(12): 122308.

DOI：10.1063/1.3037265

• astrophysical plasma
• explosives
• plasma magnetohydrodynamics
• plasma shock waves
• plasma solitons
• Poisson equation
• white dwarfs

Theoretical and numerical studies are performed for the nonlinear structures (explosive, solitons, and shock) in quantum electron-positron-ion magnetoplasmas. For this purpose, the reductive perturbation method is employed to the quantum hydrodynamical equations and the Poisson equation, obtaining extended quantum Zakharov-Kuznetsov equation. The latter has been solved using the generalized expansion method to obtain a set of analytical solutions, which reflects the possibility of the propagation of various nonlinear structures. The relevance of the present investigation to the white dwarfs is highlighted.

• 出版日期2008-12