尘埃等离子体板中的磁声孤子
Magnetosonic solitons in a dusty plasma slab
摘要：
研究了尘埃等离子体中磁声孤子的存在性。由此导出了暖尘埃磁等离子体的非线性磁流体动力学方程。给出了非线性方程组的一种解法。结果表明，由于灰尘的存在，静态结构是允许的。这与通常的磁等离子体中所谓的小激波形成了鲜明的对比。因此，相对少量的尘埃粒子可以大大改变磁化等离子体中非线性结构的行为。
英文摘要：
The existence of magnetosonic solitons in dusty plasmas is investigated. The nonlinear magnetohydrodynamic equations for a warm dusty magnetoplasma are thus derived. A solution of the nonlinear equations is presented. It is shown that, due to the presence of dust, static structures are allowed. This is in sharp contrast to the formation of the so called shocklets in usual magnetoplasmas. A comparatively small number of dust particles can thus drastically alter the behavior of the nonlinear structures in magnetized plasmas.
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