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Distributed multi-parameter quantum metrology with a superconducting quantum network

delete2026-01-20
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OA
AI
J
Jiajian Zhang
L
Lingna Wang
Y
Yong-Ju Hai
J
Jiawei Zhang
J
Ji Chu
J
Ji Jiang
W
Wenhui Huang
Y
Yongqi Liang
J
Jiawei Qiu
X
Xuandong Sun
Z
Ziyu Tao
L
Libo Zhang
Y
Yuxuan Zhou
Y
Yuanzhen Chen
W
Weijie Guo
X
Xiayu Linpeng
刘
刘松 (Song Liu)
W
Wenhui Ren
Y
Youpeng Zhong *
J
Jingjing Niu *
H
Haidong Yuan *
俞
俞大鹏 (Dapeng Yu)
DOI:10.1038/s41467-026-68535-9delete
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摘要

摘要

En 中文
量子计量学已成为计时,场传感和基础物理学中精密测量的强大工具。随着分布式量子计量的出现,其功能已扩展到跨网络量子系统探测空间分布参数。然而,具有多参数估计的分布式量子计量的可扩展实现仍然受到限制,特别是由于在量子网络上生成和分布纠缠以及处理多参数量子计量中的不兼容性的挑战。在这里,我们在具有低损耗微波互连的模块化超导量子网络上演示了分布式多参数量子计量,该平台独特地结合了快速门操作,自适应控制和确定性非局部纠缠生成。使用控制增强的顺序协议,我们估计了远程矢量场的所有三个分量,与单个策略相比,精度提高了13.72 dB。我们进一步对跨空间分离的节点沿两个方向的矢量场梯度进行直接估计,从而在局部纠缠策略上实现3.44 dB的增益。这些结果将超导量子网络建立为可扩展的多参数分布式量子计量的竞争性和可重构平台。分布式多参数量子计量允许探测跨网络量子系统的多个空间分布参数。在这里,作者演示了模块化超导量子处理器网络中的分布式多参数量子计量。
Keyword:
distributed quantum metrology
multiparameter estimation
superconducting quantum network
quantum entanglement
precision measurement
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Nature Communications 封面图
Nature Communications
IF:
15.7
论文数:
9.4W
被引数:
91.2W

机构

T
the chinese university of hong kong
学者数:
4.5K
论文数: 2.1K
被引数: 0
I
International Quantum Academy
学者数:
87
论文数: 12
被引数: 0
S
southern university of science and technology
学者数:
4.7K
论文数: 1.7K
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