Abstract

We propose a method for calculating the electronic band structure of disordered systems with strong electron correlations. Various approaches to the description of electrical conductivity of disordered systems are considered. Calculations are based on determining the one-particle Green function of the system, which is averaged over different configurations of a cluster, on the Boltzmann formalism, and the Kubo linear response theory. As the basic model, we use the Hubbard model for an A_{1 – x}B_x binary alloy.

中文翻译：

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Hubbard模型的簇方法中无序A 1-x B x二元合金的电子结构和电导率

摘要

我们提出了一种计算具有强电子相关性的无序系统的电子能带结构的方法。考虑了各种描述无序系统的电导率的方法。计算是基于Boltzmann形式论和Kubo线性响应理论，确定系统的单粒子Green函数的结果，该函数在群集的不同配置上求平均值。作为基本模型，我们将Hubbard模型用于A _{1 – x} B _x二元合金。