AI 中文总结
研究具有离子尺度不均匀性的弗拉索夫等离子体中相空间涡旋动力学，利用 VPPM - OMP 1.0 求解器，在背景 QSIS 不均匀性下研究不同啁啾驱动生成 PSV 的情况，对比均匀情况，观察到多种有趣现象并报告相关分数及响应。
AI 中文摘要
在配套论文的第一部分中，我们广泛讨论了在离子声时间尺度上使用恒定频率外部驱动创建准静态离子尺度（QSIS）不均匀性，导致离子俘获粒子不稳定性（ITPI）、波 - 波模式耦合相互作用和能量级联。通过施加小振幅电子声（EA）模式扰动由此形成的 QSIS，产生了几个关键的等离子体响应特征。在本第二部分中，使用静电、无界、OpenMP 弗拉索夫 - 泊松求解器即 VPPM - OMP 1.0，我们研究了在第一部分中获得的背景 QSIS 不均匀性存在下各种相空间涡旋（PSV）（使用两步或一步时间相关向下频率啁啾驱动生成）的形成。此外，我们还对具有精确模拟参数的单个情况与其均匀对应情况进行了一对一比较。在 QSIS 不均匀性存在的情况下，我们观察到了有趣的现象，如朗缪尔（LAN）模式的早期出现、PSV 尺寸的抑制、与均匀情况相比 PSV 的遗漏。还分别报告了不同两步或一步向下啁啾扰动情况下的粒子俘获或解俘获分数及其对增加的啁啾间隔的响应。
英文摘要
In Part I of the companion paper [Ref Part I], we have extensively discussed about the creation of quasi-stationary ion scale (QSIS) inhomogeneity using a constant frequency external drive at ion-acoustic time scales, resulting in ion trapped particle instability (ITPI), wave-wave mode coupling interaction and energy cascading. QSIS thus formed is perturbed by applying small amplitude electron acoustic (EA) mode leading to the several key plasma response features. In this Part II, using electrostatic, unbounded, OpenMP Vlasov-Poisson solver i.e VPPM-OMP 1.0, we have investigated the formation of various phase space vortices (PSV) (generated using two step or one step time dependent downward frequency chirping drives) in the presence of background QSIS inhomogeneity obtained in Part I. In addition, we have also performed one to one comparison of individual cases with their homogeneous counterparts with exact simulation parameters. In presence of QSIS inhomogeneity, we have observed interesting phenomenon such as early onset of Langmuir (LAN) mode, suppression of PSV sizes, omission of PSVs when compared to the homogeneous cases. Also, for different two step or one step downward chirp perturbation cases, particle trapping or untrapping fractions and its response to the increasing chirp intervals are respectively reported.
