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Dust-acoustic soliton in electronegative complex plasmas with streaming positive ions

机译:带有正离子流的负电复合等离子体中的粉尘声孤子

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摘要

The Sagdeev potential approach is applied to investigate theoretically and numerically the dust acoustic soliton in electronegative dusty plasmas with streaming positive ions. The self-consistent dust charge variation is also taken into account. The lower and upper limits of Mach numbers are then derived. Moreover, it is found that both the positive ion streaming velocity and negative ion density can lower the two limits. The soliton profiles, involving the spatial potential, particle densities, dust surface potential, and space net charge distributions in various cases, are plotted and discussed. (c) 2005 American Institute of Physics.
机译:Sagdeev势方法用于理论和数值研究带有正离子流的负电尘埃等离子体中的尘埃声孤子。还应考虑粉尘电荷的自洽变化。然后得出马赫数的下限和上限。此外,发现正离子流速度和负离子密度均可以降低两个极限。绘制并讨论了包括空间势,粒子密度,尘埃表面势和空间净电荷分布在内的孤子轮廓。 (c)2005年美国物理研究所。

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