论文标题
疾病的性质对二维库仑群的时空相关性的普遍特征的意义
Significance of the nature of disorder on the universal features of the spatio-temporal correlations of two-dimensional Coulomb-clusters
论文作者
论文摘要
我们理解了瑕疵在由相互作用粒子组成的材料中的作用，这是由于其普遍特征的不同起源而产生的。具体而言，我们报告了二维相互作用粒子簇中的静态和动态响应。研究了具有固定杂质的密闭系统，并将结果与不规则捕获的颗粒系统的结果进行了比较。虽然第一种类型的疾病导致了扩散的单粒子动力学，但单个粒子在不规则的陷阱中的运动是混乱但弹道的。就其定性特性而言，许多粒子系统并不能区分这两种疾病模型，尤其是描述了基础库仑“固体”的热熔化。但是，定量差异持续存在 - 松弛时间尺度的尺度通过调整杂质浓度而显着差异。
We comprehend the role of imperfections in materials consisting of interacting particles, arising from different origins on their universal features. Specifically, we report the static and dynamic responses in a cluster of Coulomb interacting particles in two dimensions. Confined systems with pinned impurities are studied, and results are compared with those from irregularly trapped system of particles. While the disorder of first type leads to diffusive single-particle dynamics, the motion of a single particle in an irregular trap is chaotic but ballistic. The many-particle system does not differentiate between these two models of disorder insofar as their qualitative properties are concerned -- particularly for describing the thermal melting of the underlying Coulomb-"solid". However, quantitative differences persist -- the relaxation time scales differ significantly by tuning impurity concentration.
