- Physical Review Journals
All JournalsPhysics Magazine

Physical Review Letters

Export citation

Export citation

Choose format for download:

Download Citation

    Single-Shot Readout of a Solid-State Electron Spin Qutrit

    Yuhang Guo1,2, Wentao Ji1,2,4, Xi Kong3,*, Mengqi Wang1,2,4, Haoyu Sun1,2, Jingyang Zhou1,2, Zihua Chai1,2, Xing Rong1,2,4, Fazhan Shi1,2,4 et al.

    Ya Wang1,2,4,† and Jiangfeng Du1,2,4,5,‡

    • 1CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
    • 2CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
    • 3The State Key Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
    • 4Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China
    • 5School of Physics, Zhejiang University, Hangzhou 310027, China

    • *kongxi@nju.edu.cn
    • †ywustc@ustc.edu.cn
    • ‡djf@ustc.edu.cn
    PDF

    Phys. Rev. Lett. 132, 060601 – Published 8 February, 2024

    DOI: https://doi.org/10.1103/PhysRevLett.132.060601

    Abstract

    Quantum systems usually feature a rich multilevel structure with promising resources for developing superior quantum technologies compared with their binary counterpart. Single-shot readout of these high-dimensional quantum systems is essential for exploiting their potential. Although there have been various high-spin systems, the single-shot readout of the overall state of high-spin systems remains a challenging issue. Here we demonstrate a reliable single-shot readout of spin qutrit state in a low-temperature solid-state system utilizing a binary readout scheme. We achieve a single-shot readout of an electron spin qutrit associated with a single nitrogen-vacancy center in diamond with an average fidelity of 87.80%. We use this spin qutrit system to verify quantum contextuality, a fundamental test of quantum mechanics. We observe a violation of the noncontextual hidden variable inequality with the developed single-shot readout in contrast to the conventional binary readout. These results pave the way for developing quantum information processing based on spin qutrits.

    View figure in article

    Physics Subject Headings (PhySH)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    Other Options

    Supplemental Material (Subscription Required)

    References (Subscription Required)

    Outline

    Information

    Phys. Rev. Lett. 132, 060601– Published 8 February, 2024
    • Received 6 July 2023
    • Accepted 9 January 2024
    Crossmark - Check for updates button

    © 2024 American Physical Society

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation