论文标题

从属旋转1公式:通过相互作用的两个级别系统的时间相关运输的简单方法

Slave-Spin 1 formulation: A simple approach to time-dependent transport through an interacting two level system

论文作者

Ludovico, Maria Florencia, Capone, Massimo

论文摘要

我们介绍并开发了一种从时间依赖性驱动器下描述一个通用相互作用的两个级别系统的奴隶自旋均值技术,其中添加了辅助s = 1旋转以描述电子的局部特征。我们表明,该方法有效地捕获了强相关性以及驾驶的动力学性质的主要影响,同时保持足够简单以进行分析治疗。我们的形式主义提供了一种灵活的解决方案方法,该方法可以以极小的数值成本应用于不同的设备配置。此外,从冷冻静态解决方案方面,它导致对绝热驱动系统的非常实用的描述。

We introduce and develop a slave-spin mean-field technique for describing a generic interacting two level systems under time-dependent drivings, where an auxiliary S=1 spin is added to describe the localized character of the electrons. We show that the approach efficiently captures the main effects of the strong correlations as well as the dynamical nature of the driving, while remaining simple enough to allow for an analytical treatment. Our formalism provides a flexible solution method, which can be applied to different device configurations at an extremely small numerical cost. Furthermore, it leads to a very practical description of adiabatically driven systems in terms of frozen static solutions.

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