论文标题
温度和磁化对一维无序系统中莫特·安德森物理的影响
Effects of Temperature and Magnetization on the Mott-Anderson Physics in one-dimensional Disordered Systems
论文作者
论文摘要
我们通过通过线性熵量化的平均单位点纠缠相互作用的一维链中的莫特·安德森物理学研究，该链条通过密度功能理论计算获得。我们表明，所谓的全安德森本地化$ - $的最小障碍力量以对$ - $的真实空间定位为特征，这在很大程度上取决于互动制度。发现定位程度与相关性与疾病潜力之间的相互作用本质上相关。在磁化系统中，完整的安德森定位的最小纠缠特征被分为两个，每个旋转物种。我们表明，尽管所有类型的本地化最终都随温度升高而消失，但与莫特般的定位相比，整个安德森的定位持续到更高的温度。
We investigate the Mott-Anderson physics in interacting disordered one-dimensional chains through the average single-site entanglement quantified by the linear entropy, which is obtained via density-functional theory calculations. We show that the minimum disorder strength required to the so-called full Anderson localization $-$ characterized by the real-space localization of pairs $-$ is strongly dependent on the interaction regime. The degree of localization is found to be intrinsically related to the interplay between the correlations and the disorder potential. In magnetized systems, the minimum entanglement characteristic of the full Anderson localization is split into two, one for each of the spin species. We show that although all types of localization eventually disappear with increasing temperature, the full Anderson localization persists for higher temperatures than the Mott-like localization.
