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Spin density polarization effects in the presence of Coriolis force on ion acoustic waves in quantum plasma
Contributions to Plasma Physics ( IF 1.6 ) Pub Date : 2020-12-21 , DOI: 10.1002/ctpp.202000189
Sajjad Hussain 1 , Alireza Abdikian 2 , Haseeb Hasnain 1
Affiliation  

Ion acoustic solitary waves in a quantum plasma, which is slowly rotating around an axis at an angle θ with the direction of magnetic field, are investigated. Quantum hydrodynamic model is under consideration with the effects of rotations which are included via Coriolis force. Fermions are degenerate and have different spin density states, that is, up and down characterized via parameter α. Linear analysis is performed by applying Fourier transformation to derive dispersion relation. For nonlinear analysis, we apply reductive perturbation method to derive Korteweg de Vries equation (KdV). The effects of variations of Coriolis force, spin polarization, and quantum parameter on characteristics of solitary structure are discussed. These results are applicable to astrophysical and laboratory plasmas.

中文翻译:

存在科氏力的自旋密度极化对量子等离子体中离子声波的影响

研究了量子等离子体中的离子声孤波,该离子声孤波围绕着与磁场方向成角度θ的轴缓慢旋转。考虑通过科里奥利力包括的旋转效应的量子流体力学模型。费米子简并具有不同的自旋密度状态,即通过参数α表征其上下。线性分析是通过应用傅立叶变换来得出色散关系的。对于非线性分析,我们应用还原摄动法来推导Korteweg de Vries方程(KdV)。讨论了科里奥利力,自旋极化和量子参数的变化对孤立结构特征的影响。这些结果适用于天体物理和实验室血浆。
更新日期:2020-12-21
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