论文标题
Pauli封锁与量子点中电子偶联的相互作用
Interplay of Pauli blockade with electron-photon coupling in quantum dots
论文作者
论文摘要
Pauli封锁状态和微波腔传输测量测量中的两种量子传输测量都是旋转量读数和表征的重要工具。基于广义输入输出理论，我们得出了一个理论框架，以研究传输设置中的双量子点（DQD）如何与耦合的微波谐振器相互作用，而Pauli Bockade则通过DQD纠正了电流。我们表明，谐振器的输出场可用于推断泄漏电流，从而深入了解阻断机制。在硅DQD的情况下，我们展示了山谷准排放性如何对该方案施加局限性。我们还证明，可以从同时通过传输实验的谐振器响应估算大量未知的DQD参数，包括（但不限于）山谷分裂，从而提供了有关DQD显微镜环境的更详细的知识。此外，我们描述并量化了稳态泄漏电流上谐振光子光子的反作用。
Both quantum transport measurements in the Pauli blockade regime and microwave cavity transmission measurements are important tools for spin-qubit readout and characterization. Based on a generalized input-output theory we derive a theoretical framework to investigate how a double quantum dot (DQD) in a transport setup interacts with a coupled microwave resonator while the current through the DQD is rectified by Pauli blockade. We show that the output field of the resonator can be used to infer the leakage current and thus obtain insight into the blockade mechanisms. In the case of a silicon DQD, we show how the valley quasi-degeneracy can impose limitations on this scheme. We also demonstrate that a large number of unknown DQD parameters including (but not limited to) the valley splitting can be estimated from the resonator response simultaneous to a transport experiment, providing more detailed knowledge about the microscopic environment of the DQD. Furthermore, we describe and quantify a back-action of the resonator photons on the steady state leakage current.
