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Configuration space in electron glasses

机译:电子眼镜的配置空间

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摘要

We study numerically the low-energy configuration space of electron glasses. We consider systems with Coulomb interactions, short-range interactions and no interactions. First, we calculate the integrated density of configurations as a function of energy. At a given energy, this density is lower for Coulomb glasses than for short-range systems, which in turn is lower than for non-interacting systems. We analyse how the site occupancy Varies with the number of configurations. Through this study we estimate the number of particles involved in a typical low-energy transition between configurations. This number increases with increasing system size for long-range interactions, while it is basically constant for a short-range interaction. Finally we calculate the density of metastable configurations, that is valleys, classified according to their degree of stability. [References: 16]
机译:我们从数值上研究了电子眼镜的低能量配置空间。我们考虑具有库仑相互作用,短程相互作用且没有相互作用的系统。首先,我们根据能量计算结构的集成密度。在给定的能量下,库仑玻璃的密度低于短距离系统的密度,而短距离系统的密度又小于非交互系统的密度。我们分析站点占用率如何随配置数量而变化。通过这项研究,我们估计了构型之间典型的低能跃迁所涉及的粒子数量。对于远程交互,此数字随系统大小的增加而增加,而对于短距离交互,此数字基本上是恒定的。最后,我们根据其稳定性程度来计算亚稳构型(即山谷)的密度。 [参考:16]

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