Mc Kerr Michael, Haas Fernando, Kourakis Ioannis
Center for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN Northern Ireland, United Kingdom.
Instituto de Física, Universidade Federal do Rio Grande do Sul, 3308-7286 Av. Bento Gonalves 9500, Porto Alegre, RS, Brazil.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Sep;90(3):033112. doi: 10.1103/PhysRevE.90.033112. Epub 2014 Sep 29.
A self-consistent relativistic two-fluid model is proposed for electron-ion plasma dynamics. A one-dimensional geometry is adopted. Electrons are treated as a relativistically degenerate fluid, governed by an appropriate equation of state. The ion fluid is also allowed to be relativistic, but is cold, nondegenerate, and subject only to an electrostatic potential. Exact stationary-profile solutions are sought, at the ionic scale, via the Sagdeev pseudopotential method. The analysis provides the pulse existence region, in terms of characteristic relativistic parameters, associated with the (ultrahigh) particle density.
提出了一种用于电子 - 离子等离子体动力学的自洽相对论双流体模型。采用一维几何结构。电子被视为相对论性简并流体，由适当的状态方程控制。离子流体也被允许是相对论性的，但它是冷的、非简并的，并且仅受静电势的影响。通过萨德耶夫（Sagdeev）赝势方法，在离子尺度上寻求精确的稳态分布解。该分析根据与（超高）粒子密度相关的特征相对论参数给出了脉冲存在区域。
