Experimental quantum error correction with binomial bosonic codes

Invited

Abstract

Quantum error correction (QEC) is necessary for a practical quantum computer because of the fragile nature of quantum information. A measurement-based QEC requires rapid extraction of error syndromes without perturbing the encoded information and fast feedback control to correct the detected errors. Encoding quantum information on photonic states in a microwave cavity for QEC has attracted a lot of interests. This scheme benefits from the infinite dimensional Hilbert space of a harmonic oscillator for redundant information encoding and only one error syndrome that needs to be monitored, thus greatly reducing the requirements on hardware. In this talk, I will discuss our recent experimental efforts [1] toward both the repetitive QEC using a binomial bosonic code in a circuit quantum electrodynamics architecture and full control on the logical qubit. The demonstrated binomial bosonic codes promise the realization of QEC-enhanced precision measurements and quantum communications, and could also be further explored for fault-tolerant quantum computation.
[1] arXiv:1805.09072

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Presenters

  • Luyan Sun

    Tsinghua University

Authors

  • Luyan Sun

    Tsinghua University

  • Ling Hu

    Tsinghua University

  • Yuwei Ma

    Tsinghua University

  • Weizhou Cai

    Tsinghua University

  • Xianghao Mu

    Tsinghua University

  • Yuan Xu

    Tsinghua University

  • Wang Weiting

    Tsinghua University

  • Yukai Wu

    University of Michigan

  • Haiyan Wang

    Tsinghua University

  • Yipu Song

    IIIS, Tsinghua University, Tsinghua University

  • Chang-Ling Zou

    University of Science and Technology of China, Key Laboratory of Quantum Information, University of Science and Technology of China, Yale University, USTC

  • Steven Girvin

    Departments of Applied Physics and Physics, Yale Univ, Department of Applied Physics, Yale University, Yale Univ, Department of Applied Physics and Physics, Yale University, Yale University

  • Luming Duan

    Center for Quantum Information, IIIS, Tsinghua University, IIIS, Tsinghua University, Tsinghua University, Center for Quantum Information, IIIS,Tsinghua University