朗缪尔波阻尼在阈值振幅附近的非俘获停滞
Nontrapping arrest of Langmuir wave damping near the threshold amplitude
摘要：
数值研究了一个朗缪尔波的演化有限振幅略高于阈值，从nondamping情况下分离阻尼。逮捕的线性阻尼被发现是一个二阶效应，由于弹道演化的扰动，场和粒子之间的共振功率转移，和组织的相空间成一个正斜率的平均分布函数$f_{av}$周围的共振波相速度$v_ϕ$。在阈值附近，波势中的捕获不会阻止阻尼或饱和随后的生长阶段。
英文摘要：
Evolution of a Langmuir wave is studied numerically for finite amplitudes slightly above the threshold which separates damping from nondamping cases. Arrest of linear damping is found to be a second-order effect due to ballistic evolution of perturbations, resonant power transfer between field and particles, and organization of phase space into a positive slope for the average distribution function $f_{av}$ around the resonant wave phase speed $v_ϕ$. Near the threshold trapping in the wave potential does not arrest damping or saturate the subsequent growth phase.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
