首页|On-chip quantum NOON state sensing for temperature and humidity

On-chip quantum NOON state sensing for temperature and humidity

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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.

quantum sensingNOON statephotonic chip

罗伟宏、吴超、杜昱星、赵畅、余苗苗、朱枰谕、张凯凯、徐平

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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

National Key R&D Program of ChinaInnovation Program for Quantum Science and Technology

2022YFF07128002021ZD0301500

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(10)