超导-冷原子复合系统的研究进展  

Research progress of superconductor and cold atoms hybrid quantum system

作　　者：吕庆先 李赛 涂海涛 廖开宇 梁振涛[1] 颜辉[1,2,3] 朱诗亮[1,2,3] Lv Qing-Xian;Li Sai;Tu Hai-Tao;Liao Kai-Yu;Liang Zhen-Tao;Yan Hui;Zhu Shi-Liang(Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education),School of Physics,South China Normal University,Guangzhou 510006,China;Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,South China Normal University,Guangzhou 510006,China;Frontier Research Institute for Physics,Guangdong-Hong Kong Joint Laboratory of Quantum Matter,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学物理学院,原子亚原子结构与量子调控教育部重点实验室,广州510006 [2]华南师范大学,广东省量子调控工程与材料重点实验室,广州510006 [3]华南师范大学,粤港量子物质联合实验室,物理前沿科学研究院,广州510006

出　　处：《物理学报》2023年第20期202-212,共11页Acta Physica Sinica

基　　金：量子科技创新计划(批准号:2021ZD0301705);国家自然科学基金(批准号:12104168,12074132,12225405,12247123,12304287,U20A2074,12074180);国家重点研发计划(批准号:2022YFA1405300,2022YFA1405303,2020YFA0309500);中国博士后科学基金(批准号:2022M721222,2023T160233);广东省基础与应用基础研究基金(批准号:2021A1515110668,2023A1515011550);广州市科技计划(批准号:202201010533)资助的课题。

摘　　要：超导-冷原子复合系统因能够实现快速门操控、长寿命存储和光纤中长距离传输等特点,被认为是实现两台超导量子计算机光互联的最有潜力的复合体系之一.本文综述了近年来基于超导-冷原子复合系统实现两台超导量子计算机光互联的研究进展,包括超导芯片与冷原子相干耦合、微波光波相干转换和超导量子比特与量子转换器长程微波互联.对该复合量子系统的研究将为超导量子计算机之间的实用化光纤互联奠定物理和技术基础,有望在分布式超导量子计算机和杂化量子网络中获得广泛应用.The hybrid quantum system composed of superconductor and cold atoms is expected to achieve fast quantum gates,long-life quantum storage and long-distance transmission through optical fibers,making it one of the most promising hybrid quantum systems to realize optical interconnection between two superconducting quantum computers.In this paper,we comprehensively review the recent research advancements in the optical interconnection of two superconducting quantum computers,based on the superconductor and cold atoms hybrid quantum system,specifically the review covers the coherent coupling between superconducting chips and cold atoms,the coherent microwave-to-optics conversion,and the long-range microwave interconnection between superconducting qubits and quantum converters.The system is expected to provide a physical and technical foundation for practical optical-fiber interconnection of two superconducting quantum computers,and have broad applications in distributed superconducting quantum computation and hybrid quantum networks.

关 键 词：超导-冷原子复合系统 相干耦合 微波光波转换 长程微波互联 

分 类 号：O413[理学—理论物理] TP38[理学—物理]