The effect of dust size distribution on quantum dust acoustic wave
The effect of dust size distribution on quantum dust acoustic wave
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DOI：
10.1063/1.3227648
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发表时间：
2009-09
影响因子：
2.2
通讯作者：
S. El-Labany;N. El-siragy;W. F. El-Taibany;E. E. Behery-E.
中科院分区：
文献类型：
--
作者：
S. El-Labany;N. El-siragy;W. F. El-Taibany;E. E. Behery-E.
基于量子流体动力学理论，提出了一种包含灰尘尺寸分布（DSD）效应的量子尘埃声波（QDAW）模型。导出了足以描述 QDAW 的扎哈罗夫-库兹涅佐夫方程的量子版本。应用了两种不同的 DSD 功能。对波速、振幅和宽度与 DSD 的相关性进行了数值研究。量子效应仅改变孤子宽度。对当前的发现进行了简短的总结，并讨论了它们与天体物理学数据的相关性。
Based on the quantum hydrodynamics theory, a proposed model for quantum dust acoustic waves (QDAWs) is presented including the dust size distribution (DSD) effect. A quantum version of Zakharov–Kuznetsov equation is derived adequate for describing QDAWs. Two different DSD functions are applied. The relevance of the wave velocity, amplitude, and width to the DSD is investigated numerically. The quantum effect changes only the soliton width. A brief conclusion is presented to the current findings and their relevance to astrophysics data is also discussed.