微纳尺度稀土掺杂晶体的量子相干性能及其应用研究进展  

Research progress of quantum coherence performance and applications of micro/nano scale rare-earth doped crystals

作　　者：郭牧城 汪福东 胡肇高 任苗苗 孙伟业 肖婉婷 刘书萍 钟满金 Guo Mu-Cheng;Wang Fu-Dong;Hu Zhao-Gao;Ren Miao-Miao;Sun Wei-Ye;Xiao Wan-Ting;Liu Shu-Ping;Zhong Man-Jin(Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology(SUSTech),Shenzhen 518055,China;Shenzhen International Quantum Academy(SIQA),Shenzhen 518048,China;Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology(SUSTech),Shenzhen 518055,China)

机构地区：[1]南方科技大学深圳量子科学与工程研究院,深圳518055 [2]深圳国际量子研究院,深圳518048 [3]南方科技大学,广东省量子科学与工程重点实验室,深圳518055

出　　处：《物理学报》2023年第12期27-45,共19页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:11904159,12004168);广东省基础与应用基础研究基金(批准号:2021A1515110191);广东省“珠江人才计划”引进创新创业团队(批准号:2019ZT08X324);广东省量子科学与工程重点实验室(批准号:2019B121203002)资助的课题。

摘　　要：稀土离子掺杂晶体具有稳定的固态物性和出色的能级跃迁相干特性,在量子信息应用研究,尤其是发展量子存储设备方面独具潜力.除了宏观的块状稀土离子单晶,微纳尺度稀土离子晶体在高度集成的杂化量子系统和微型化量子设备方面也具有广泛的应用前景,且其制备难度较低,在体积、形状和组分调控上更具灵活性.因此,开发高性能的微纳尺度稀土离子晶体系统,并对其量子态进行精密探测与操控,已成为量子信息领域的重要研究方向之一.本文结合稀土离子晶体的高分辨和相干光谱学表征技术,综述了近年来微纳尺度稀土离子晶体在材料制备加工、量子相干性能测量、物理机理探索以及量子器件开发等方面的研究进展,对其在量子存储、量子频率转换、量子单光子源以及量子逻辑门等方面取得的最新研究进展进行了总结.最后,对微纳尺度稀土晶体材料及其信息器件研究过程中可能的改进方向和策略进行了讨论.Rare-earth ion doped crystals possess stable solid state physicochemical properties and long optical coherence time and spin coherence time,thus showing important development prospect in quantum information science and technology area.Investigations on macroscopic bulk rare-earth single crystals have obtained many promising results,especially in the field of optical quantum memory.With the rapid development of quantum information science,a variety of new functions or multifunctional integrations are found in rare earth crystal systems,such as on chip quantum storage,microwave to optical frequency conversion,scalable quantum single photon sources,and quantum logic gates.As a result,beyond the macroscopic bulk rare-earth single crystals,micro/nano-scale rare-earth crystals have received much attention in recent years and they are regarded as promising candidates in highly integrated hybrid quantum systems and miniaturized quantum devices.Moreover,wet chemical method synthesized micro/nano-scale rare-earth crystals have lower growth difficulty and more flexible manipulation in volume,shape and composition.Therefore,exploring high-performance micro/nano-scale rare-earth crystals and precisely manipulating their quantum states have become one of the important directions in today’s quantum information science and technology research.In this review,we first briefly introduce the basic concepts and high resolution spectroscopic techniques that are commonly used in rare earth ion doped crystals for quantum information science and technologies,such as hole burning technique and photon echo technique.Then we summarize comprehensively recent research status and development trends of rare earth ion doped polycrystalline nanoparticles,thin films,single crystal based micro systems,and some other micro/nano-scale rare earth platforms in terms of material fabrication,quantum coherence property,dephasing mechanisms,and also quantum device explorations.The latest research advances in quantum information applications such as quant

关 键 词：量子信息 量子器件 稀土离子 量子调控 

分 类 号：O413[理学—理论物理]