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| 1 | Bosonic quantum error correction codes in superconducting quantum circuits显示文摘Quantum information is vulnerable to environmental noise and experimental imperfections,hindering the reli-ability of practical quantum information processors.Therefore,quantum error correction(QEC)that can pro-tect quantum information against noise is vital for universal and scalable quantum computation.Among many different experimental platforms,superconducting quantum circuits and bosonic encodings in superconducting microwave modes are appealing for their unprecedented potential in QEC.During the last few years,bosonic QEC is demonstrated to reach the break-even point,i.e.the lifetime of a logical qubit is enhanced to exceed that of any individual components composing the experimental system.Beyond that,universal gate sets and fault-tolerant operations on the bosonic codes are also realized,pushing quantum information processing towards the QEC era.In this article,we review the recent progress of the bosonic codes,including the Gottesman-Kitaev-Preskill codes,cat codes,and binomial codes,and discuss the opportunities of bosonic codes in various quantum applications,ranging from fault-tolerant quantum computation to quantum metrology.We also summarize the challenges associated with the bosonic codes and provide an outlook for the potential research directions in the long terms. | Weizhou Cai Yuwei Ma Weiting Wang Chang-Ling Zou Luyan Sun | 2021 | Fundamental Research2021，1，1： | 3 |
| 2 | 超导系统中玻色模式的量子控制显示文摘玻色模式在多种量子技术中都有重要应用,比如光子常用于量子通信,自旋系综中的磁振子可用于量子信息存储,力学谐振子可用于微波到光波的量子转换.最近的研究表明,玻色模式也可用于进行量子计算,其最具代表性的物理体系是超导量子谐振腔电路.超导系统的玻色模式可以具有较长的相干时间,量子信息可以存储在这些玻色模式的希尔伯特子空间中.对玻色模式进行量子操控的难点在于引入除高斯操控以外的非线性操控.本综述系统介绍了目前对玻色模式进行量子控制的各种理论方法和实验进展,包括幺正控制、量子反馈控制、驱动-耗散控制与和乐量子控制.文章总结的操控方法将对玻色量子计算的进一步发展具有重要的指导意义. | 马稳龙 Shruti Puri Robert J.Schoelkopf Michel H.Devoret S.M.Girvin 蒋良 | 2021 | Science Bulletin2021，66，17： | 1 |
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