论文标题
电子旋转中量子微波场的多模储存超过100毫秒
Multimode storage of quantum microwave fields in electron spins over 100 ms
论文作者
论文摘要
长寿命的多模式Qubit寄存器是用于模块化量子计算体系结构的启示技术。为了与超导码头进行接口，这种量子存储器应该能够长时间存储在单光子水平上的传入量子微波场，并按需取回它们。在这里，我们使用类似Hahn-Echo的方案在硅中旋转的一组纤维微波场的列车部分吸收。长时间的存储时间是通过在时钟过渡中偏向二晶型供体来获得的。相干性和量子统计数据保存在存储中。
A long-lived multi-mode qubit register is an enabling technology for modular quantum computing architectures. For interfacing with superconducting qubits, such a quantum memory should be able to store incoming quantum microwave fields at the single-photon level for long periods of time, and retrieve them on-demand. Here, we demonstrate the partial absorption of a train of weak microwave fields in an ensemble of bismuth donor spins in silicon, their storage for 100 ms, and their retrieval, using a Hahn-echo-like protocol. The long storage time is obtained by biasing the bismuth donors at a clock transition. Phase coherence and quantum statistics are preserved in the storage.
