论文标题
用于量子技术的混合超导体 - 触发器系统
Hybrid superconductor-semiconductor systems for quantum technology
论文作者
论文摘要
超导量子设备提供了出色的连接性和可控性，而半导体旋转矩形量子位却以其持久的量子相干性，快速控制以及微型化和缩放的潜力而脱颖而出。在过去的几年中，在将超导电路和半导体设备结合到杂种量子系统中取得了显着的进步，这些系统受益于这两种成分的物理性质。超导腔可以在电子自由度之间的长距离上介导量子相连的耦合，例如半导体芯片上单个电子的自旋，因此为量子设备提供了必不可少的连接性。半导体量子点中的电子旋转达到了很长的相干时间，并允许以增加的忠诚度进行快速的量子门操作。我们总结了描述超导 - 传导杂种量子系统的最新进展和理论模型，解释了这些系统的局限性，并描述了未来实验和理论的不同方向。
Superconducting quantum devices provide excellent connectivity and controllability while semiconductor spin qubits stand out with their long-lasting quantum coherence, fast control, and potential for miniaturization and scaling. In the last few years, remarkable progress has been made in combining superconducting circuits and semiconducting devices into hybrid quantum systems that benefit from the physical properties of both constituents. Superconducting cavities can mediate quantum-coherent coupling over long distances between electronic degrees of freedom such as the spin of individual electrons on a semiconductor chip and thus provide essential connectivity for a quantum device. Electron spins in semiconductor quantum dots have reached very long coherence times and allow for fast quantum gate operations with increasing fidelities. We summarize recent progress and theoretical models that describe superconducting-semiconducting hybrid quantum systems, explain the limitations of these systems, and describe different directions where future experiments and theory are headed.
