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arXiv 2004.12595math-phmath.DGmath.MP
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弗拉索夫等离子体的匹配对分析

Matched pair analysis of the Vlasov plasma

Oğul Esen, Serkan Sütlü

摘要:

我们提出的哈密顿(李泊松)分析的弗拉索夫等离子体,其动力学的时刻,从匹配对分解的观点。我们表示这些(李泊松)系统的耦合\textit{mutually interacting}(李泊松)子动力学。这种相互作用超出了著名的半直积理论。因此,作为本讨论的几何框架,我们提出了允许相互作用的\textit{matched pair Lie-Poisson}公式。此外,无论是动力矩和Vlasov等离子体的情况下,我们观察到的本构子动力学之一是可压缩等熵流体流动,另一个是动力矩的动力学顺序$\geq 2$。在这方面,我们提供的代数/几何(匹配对)分解与物理直觉完美和谐。为了完成讨论,我们提出了一个动量制定的弗拉索夫等离子体,随着其匹配对分解。

英文摘要:

We present the Hamiltonian (Lie-Poisson) analysis of the Vlasov plasma, and the dynamics of its kinetic moments, from the matched pair decomposition point of view. We express these (Lie-Poisson) systems as couplings of \textit{mutually interacting} (Lie-Poisson) subdynamics. The mutual interaction is beyond the well-known semi-direct product theory. Accordingly, as the geometric framework of the present discussion, we address the \textit{matched pair Lie-Poisson} formulation allowing mutual interactions. Moreover, both for the kinetic moments and the Vlasov plasma cases, we observe that one of the constitutive subdynamics is the compressible isentropic fluid flow, and the other is the dynamics of the kinetic moments of order $\geq 2$. In this regard, the algebraic/geometric (matched pair) decomposition that we offer, is in perfect harmony with the physical intuition. To complete the discussion, we present a momentum formulation of the Vlasov plasma, along with its matched pair decomposition.

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