On-chip quantum NOON state sensing for temperature and humidity

doi:10.1088/1674-1056/ad72e2

中国物理B ›› 2024, Vol. 33 ›› Issue (10): 100305-100305.doi: 10.1088/1674-1056/ad72e2

On-chip quantum NOON state sensing for temperature and humidity

Weihong Luo(罗伟宏)†, Chao Wu(吴超)†, Yuxing Du(杜昱星)†, Chang Zhao(赵畅), Miaomiao Yu(余苗苗), Pingyu Zhu(朱枰谕), Kaikai Zhang(张凯凯), and Ping Xu(徐平)‡

Institute for Quantum Information & State Key Laboratory of High Performance Computing, College of Computer Science and Technology, National University of Defense Technology, Changsha 410073, China

收稿日期:2024-07-17 修回日期:2024-08-23 接受日期:2024-08-23 发布日期:2024-09-21
通讯作者: Ping Xu E-mail:pingxu520@nju.edu.cn
基金资助:
Project supported by the National Key R&D Program of China (Grant No. 2022YFF0712800) and Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0301500).

On-chip quantum NOON state sensing for temperature and humidity

Weihong Luo(罗伟宏)†, Chao Wu(吴超)†, Yuxing Du(杜昱星)†, Chang Zhao(赵畅), Miaomiao Yu(余苗苗), Pingyu Zhu(朱枰谕), Kaikai Zhang(张凯凯), and Ping Xu(徐平)‡

Institute for Quantum Information & State Key Laboratory of High Performance Computing, College of Computer Science and Technology, National University of Defense Technology, Changsha 410073, China

Received:2024-07-17 Revised:2024-08-23 Accepted:2024-08-23 Published:2024-09-21
Contact: Ping Xu E-mail:pingxu520@nju.edu.cn
Supported by:
Project supported by the National Key R&D Program of China (Grant No. 2022YFF0712800) and Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0301500).

摘要/Abstract

摘要： A maximal photon number entangled state, namely NOON state, can be adopted for sensing with a quantum enhanced precision. In this work, we designed silicon quantum photonic chips containing two types of Mach-Zehnder interferometers wherein the two-photon NOON state, sensing element for temperature or humidity, is generated. Compared with classical light or single photon case, two-photon NOON state sensing shows a solid enhancement in the sensing resolution and precision. As the first demonstration of on-chip quantum photonic sensing, it reveals the advantages of photonic chips for high integration density, small-size, stability for multiple-parameter sensing serviceability. A higher sensing precision is expected to beat the standard quantum limit with a higher photon number NOON state.

关键词: quantum sensing, NOON state, photonic chip

Abstract: A maximal photon number entangled state, namely NOON state, can be adopted for sensing with a quantum enhanced precision. In this work, we designed silicon quantum photonic chips containing two types of Mach-Zehnder interferometers wherein the two-photon NOON state, sensing element for temperature or humidity, is generated. Compared with classical light or single photon case, two-photon NOON state sensing shows a solid enhancement in the sensing resolution and precision. As the first demonstration of on-chip quantum photonic sensing, it reveals the advantages of photonic chips for high integration density, small-size, stability for multiple-parameter sensing serviceability. A higher sensing precision is expected to beat the standard quantum limit with a higher photon number NOON state.

Key words: quantum sensing, NOON state, photonic chip

中图分类号: (Quantum information)

03.67.-a

42.50.Dv (Quantum state engineering and measurements) 42.82.-m (Integrated optics) 42.65.-k (Nonlinear optics)

Weihong Luo(罗伟宏), Chao Wu(吴超), Yuxing Du(杜昱星), Chang Zhao(赵畅), Miaomiao Yu(余苗苗), Pingyu Zhu(朱枰谕), Kaikai Zhang(张凯凯), and Ping Xu(徐平). On-chip quantum NOON state sensing for temperature and humidity[J]. 中国物理B, 2024, 33(10): 100305-100305.

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On-chip quantum NOON state sensing for temperature and humidity

On-chip quantum NOON state sensing for temperature and humidity

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