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All-optical superconducting qubit readout

delete2025-02-11
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OA
AI
G
Georg Arnold
W
Werner, Thomas
R
Rishabh Sahu
L
Lucky N. Kapoor
L
Liu Qiu
J
J. M. Fink *
DOI:10.1038/s41567-024-02741-4delete
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摘要

摘要

En 中文
超导量子硬件的快速发展预计将在可扩展性方面遇到实质性限制,因为低温环境下的错误校正对输入-输出提出了严格的要求。经典数据中心依赖光纤互连来消除类似的网络瓶颈。本着同样的精神,超冷电光链路已被提议并用于产生量子比特控制信号,或替代低温读出电子设备。迄今为止,这些方法要么效率低,要么带宽低,要么引入额外噪声。在此,我们在毫开尔文温度下实现了基于光纤的量子比特读出。我们使用一种设备同时执行微波与光频之间的上变频和下变频,因此无需任何有源或无源低温微波设备。我们演示了无环形器的全光单次读出方案。重要的是,尽管缺少屏蔽元件,但我们未观察到任何直接辐射对量子比特状态的影响。超导电路与电信波长光之间的这种兼容性不仅是建立模块化量子网络的前提,而且对于超导光子探测器的复用读出和经典超导逻辑也具有重要意义。
Keyword:
MICROWAVE
CHIP

期刊

Nature Physics 封面图
Nature Physics
IF:
18.4
论文数:
6.7K
被引数:
5.7W

机构

I
IST Austria
学者数:
123
论文数: 54
被引数: 30
引用论文

引用论文

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