Collisional damping rates for plasma waves
Collisional damping rates for plasma waves
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等离子波的碰撞阻尼率
DOI：
10.1063/1.4953802
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发表时间：
2016
影响因子：
2.2
通讯作者：
P. Yoon
中科院分区：
文献类型：
--
作者：
S. F. Tigik;L. F. Ziebell;P. Yoon;P. Yoon
直到最近，由碰撞输运与集体过程主导的等离子体动力学之间的区别才得到严格的解决。最近的一篇论文[P. H。Yoon等人，物理评论E 93，033203（2016）]首次制定了一个统一的动力学理论，其中集体过程和碰撞动力学系统地纳入第一原理。这样一个形式主义的结果之一是严格推导的碰撞阻尼率的朗缪尔和离子声波，这可以对比的启发式的习惯做法。然而，结果仅以正式的数学表达式给出。本简短的通信数值评估严格的碰撞阻尼率，通过考虑麦克斯韦速度分布函数的等离子体粒子的情况下，以评估的后果，以定量的方式严格的形式主义。与启发式（“斯皮策”）公式的比较表明，准确的阻尼率是多个。
The distinction between the plasma dynamics dominated by collisional transport versus collective processes has never been rigorously addressed until recently. A recent paper [P. H. Yoon et al., Phys. Rev. E 93, 033203 (2016)] formulates for the first time, a unified kinetic theory in which collective processes and collisional dynamics are systematically incorporated from first principles. One of the outcomes of such a formalism is the rigorous derivation of collisional damping rates for Langmuir and ion-acoustic waves, which can be contrasted to the heuristic customary approach. However, the results are given only in formal mathematical expressions. The present brief communication numerically evaluates the rigorous collisional damping rates by considering the case of plasma particles with Maxwellian velocity distribution function so as to assess the consequence of the rigorous formalism in a quantitative manner. Comparison with the heuristic (“Spitzer”) formula shows that the accurate damping rates are mu...
碰撞等离子体的弱湍流理论
DOI：
10.1103/physreve.93.033203
发表时间：
2016
期刊：
Physical review. E
影响因子：
--
作者：
Ziebell;Kontar;Schlickeiser
通讯作者：
Schlickeiser