Abstract

Results are presented from studies of the stability of the plane dust clusters in the form of a regular polygon with the number of particles from two to five. It is assumed that the particles are placed in the plasma consisting of Maxwellian electrons and a directed flow of cold ions. It is shown that, in such clusters, the oscillatory instabilities can develop along with the aperiodic instabilities. The ranges of plasma parameters are determined, within which the oscillatory instability of the five-particle cluster becomes saturated at the weakly nonlinear stage. As a result, the cluster forms a time crystal, which can be a chiral crystal.

中文翻译：

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非互易力对尘埃团稳定性的影响

摘要

结果来自对正多边形形式的平面尘埃簇稳定性的研究，其中粒子数为 2 到 5。假设粒子被放置在由麦克斯韦电子和定向冷离子流组成的等离子体中。结果表明，在这样的集群中，振荡不稳定性可以随着非周期不稳定性而发展。确定等离子体参数的范围，在该范围内五粒子团的振荡不稳定性在弱非线性阶段变得饱和。结果，簇形成了时间晶体，它可以是手性晶体。