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

*LS acknowledges the support from National Key Research and Development Program of China No.2017YFA0304303 and National Natural Science Foundation of China Grant No.11474177. SMG acknowledges grants from ARO W911NF1410011 and NSF DMR-1609326.

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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