论文标题
非销售量子点电路的耗散工程：输入输出方法
Dissipation-engineering of nonreciprocal quantum dot circuits: An input-output approach
论文作者
论文摘要
纳米电机设备中的非旋转效应为操纵电子传输和工程量子电子电路提供了独特的可能性，以进行信息处理。但是，缺乏严格的理论工具正在阻碍这种发展。在这里，我们基于量子光机械类似物，提供了固态量子点体系结构中非转流传输的一般输入说明。特别是，我们通过耗散工程设计（所谓的）主要点相互耦合与辅助，阻尼的量子点之间的相干耦合的量子点之间打破了互惠。我们说明了两个代表性的多端非互动模型中的一般框架，这些模型可以用作较大电路的构建块。重要的是，即使在存在局部电子波耦合产生的其他耗散作用的情况下，已确定的非偏置行为的最佳条件也存在。除了对散射矩阵的分析外，我们还表明，非偶联耦合在谐振转运方案中诱导单向电子流。总的来说，我们的分析为实现非邻国纳米电子设备的实现提供了形式主义和工作原则。
Nonreciprocal effects in nanoelectronic devices offer unique possibilities for manipulating electron transport and engineering quantum electronic circuits for information processing purposes. However, a lack of rigorous theoretical tools is hindering this development. Here, we provide a general input-output description of nonreciprocal transport in solid-state quantum dot architectures, based on quantum optomechanical analogs. In particular, we break reciprocity between coherently-coupled quantum dots by dissipation-engineering in which these (so-called) primary dots are mutually coupled to auxiliary, damped quantum dots. We illustrate the general framework in two representative multiterminal noninteracting models, which can be used as building blocks for larger circuits. Importantly, the identified optimal conditions for nonreciprocal behavior hold even in the presence of additional dissipative effects that result from local electron-phonon couplings. Besides the analysis of the scattering matrix, we show that a nonreciprocal coupling induces unidirectional electron flow in the resonant transport regime. Altogether, our analysis provides the formalism and working principles towards the realization of nonreciprocal nanoelectronic devices.
