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On the criteria of the Langmuir oscillations breaking in a plasma

机译:关于血浆中泻绒振荡的标准

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The influence of the initial distribution of the plasma electron density on the temporal dynamics of nonlinear Langmuir oscillations in plane one-dimensional geometry has been analytically and numerically studied. It is shown that if the concentration of electrons at the initial time in a certain region is less than or equal to half the background value, then the density singularity or breaking always occurs during the first half-period of oscillations in the plane of symmetry with respect to which the electrons oscillate. If the electron concentration at the initial time exceeds half the equilibrium value, then the density singularity appears outside the plane of symmetry due to the relativistic dependence of the oscillation frequency on the amplitude. In this case, the breaking time of oscillations is inversely proportional to the initial value of the electron density perturbations and the square of the electric field at the initial time.
机译:分析和数值研究了等离子体电子密度初始分布对非线性Langmuir振荡的时间动态的影响。 结果表明,如果特定区域中的初始时间的电子浓度小于或等于背景值的一半,则密度奇点或断裂总是发生在对称平面中的振荡中的第一半周期期间 对电子振荡的尊重。 如果初始时间的电子浓度超过平衡值的一半,则由于振荡频率对振幅上的相对论依赖性,密度奇点出现在对称平面之外。 在这种情况下,振荡的断裂时间与初始时间的电子密度扰动的初始值与电场的正方形成反比。

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