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.
基金项目
National Key R&D Program of China(2022YFF0712800)
Innovation Program for Quantum Science and Technology(2021ZD0301500)
维普
万方数据