论文标题
库珀对分离器在光子腔中：检测Andreev散射
Cooper pair splitter in a photonic cavity: Detection of Andreev scatterings
论文作者
论文摘要
我们模拟了与双量子点库珀对分离器耦合的腔量子电动力学（QED）的辐射反应，并分析了其光谱依赖性，以深入了解库珀对传输的动力学。该模型仅限于能量子空间，其中两个纠缠的电子通过两个近代化的量子点传递到两个正常电极。我们的研究集中在亚级策略中的安里弗斯（Andreev）散射上，该局部电荷易感性$π（ω_p）$通过Keldysh绿色功能在整个偏置电压范围内得出。特别是，在大电压极限中，$π（ω_p）$的频谱由简单的分析公式表示，该公式显示了与Andreev绑定状态之间的光子诱导的过渡相关的各种耗散过程。
We simulated the radiative response of the cavity quantum electrodynamics (QED) coupled to the double quantum dot Cooper pair splitter and analyzed its spectral dependence to get insight into dynamics of the Cooper pair transfers. The model is confined to the energy subspace where two entangled electrons are transferred to two normal electrodes through the inter-dot singlet state on two proximitized quantum dots. Our research is focused on the Andreev scatterings in the subgap regime, for which the local charge susceptibility $Π(ω_p)$ is derived, by means of Keldysh Green functions, in a whole bias voltage range. In particular, in the large voltage limit the spectrum of $Π(ω_p)$ is expressed by a simple analytical formula, which shows various dissipation processes related with photon-induced transitions between the Andreev bound states.
