Implementing Real-Time Logical Qubit Error Detection & Correction on a Trapped Ion Quantum Computer

ORAL

Abstract

Implementing a full error-corrected logical qubit requires high-fidelity gates, mid-circuit ancilla measurement, and the determination of the appropriate correction operation using the measurement. Our recent results demonstrating the central components of quantum error correction [1] focused on a single cycle of error detection and correction, due to technical control limitations. Here, we discuss some of those limitations and present a heterogeneous approach to addressing this issue with a custom gate waveform generator. Finally, we will present progress towards demonstrating multiple rounds of error correction on a Bacon-Shor-13-encoded logical qubit using trapped 171Yb+ ions.

*This work is supported by ARO through the IARPA LogiQ program, the NSF STAQ Program, the AFOSR MURIs on Dissipation Engineering in Open Quantum Systems and Quantum Interactive Protocols for Quantum Computation, the ARO MURI on Modular Quantum Circuits, and the U.S. DOE Quantum Systems Accelerator

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Publication: [1] Egan, L., Debroy, D.M., Noel, C. et al. Fault-tolerant control of an error-corrected qubit. Nature 598, 281–286 (2021)

Presenters

  • Andrew Risinger

    • Joint Quantum Institute, Department of Electrical and Computer Engineering, University of Maryland, College Park.
    • University of Maryland, College Park
    • JQI/QuICS/UMD Physics
    • JQI and QuICS and Departments of Physics and ECE, University of Maryland, College Park, MD 20742

Authors

  • Andrew Risinger

    • Joint Quantum Institute, Department of Electrical and Computer Engineering, University of Maryland, College Park.
    • University of Maryland, College Park
    • JQI/QuICS/UMD Physics
    • JQI and QuICS and Departments of Physics and ECE, University of Maryland, College Park, MD 20742

  • Alan Bell

    • AOSense, Inc.

  • Daniel Lobser

    • Sandia National Laboratories, Albuquerque, NM
    • Sandia National Laboratories

  • Crystal Noel

    • Duke
    • Department of Electrical and Computer Engineering, Duke Quantum Center, Duke University; Joint Quantum Institute, Department of Physics, University of Maryland, College Park.
    • Joint Quantum Institute, University of Maryland, College Park; Duke University Department of Electrical and Computer Engineering, Duke Quantum Center
    • JQI/QuICS/UMD Physics, DQC/Duke ECE
    • JQI and QuICS and Department of Physics, University of Maryland, College Park; Duke Quantum Center and Department of ECE, Duke University

  • Bradley Bondurant

    • Duke Quantum Center and Department of Physics, Duke University

  • Laird Egan

    • University of Maryland, College Park
    • JQI and QuICS and Departments of Physics and ECE, University of Maryland, College Park; IonQ

  • Daiwei Zhu

    • Joint Quantum Institute, Department of Electrical and Computer Engineering, University of Maryland.
    • IonQ
    • JQI and QuICS and Departments of Physics and ECE, University of Maryland, College Park; IonQ

  • Debopriyo Biswas

    • Department of Physics, Duke Quantum Center, Duke University; Joint Quantum Institute, Department of Physics, University of Maryland, College Park.
    • University of Maryland, College Park
    • JQI/QuICS/UMD Physics, DQC/Duke ECE
    • JQI and QuICS and Department of Physics, University of Maryland, College Park; Duke Quantum Center and Department of Physics, Duke University

  • Or Katz

    • Weizmann Institute of Science
    • Department of Electrical and Computer Engineering, Department of Physics, Duke Quantum Center, Duke University.
    • Duke University
    • Duke Quantum Center and Department of Physics, Duke University
    • Duke Quantum Center and Department of Electrical and Computer Engineering, Duke University, Durham, NC

  • Marko Cetina

    • Joint Quantum Institute, Department of Physics, University of Maryland, College Park; Department of Physics, Duke Quantum Center, Duke University.
    • Duke University
    • JQI/QuICS/UMD Physics, DQC/Duke ECE
    • JQI and QuICS and Department of Physics, University of Maryland, College Park; Duke Quantum Center and Department of Physics, Duke University
    • Duke Quantum Center and Department of Physics, Duke University, Durham, NC

  • Christopher R Monroe

    • JQI and QuICS and Department of Physics, University of Maryland, College Park, MD 20742; Duke Quantum Center and Department of Physics, Duke University, Durham NC 27701; IonQ
    • JQI/QuICS/UMD Physics, DQC/Duke ECE, IonQ
    • JQI, University of Maryland, College Park
    • JQI and QuICS and Department of Physics, University of Maryland, College Park; Duke Quantum Center and Department of Physics (and ECE), Duke University; IonQ
    • JQI, QuICS, Dept. of Physics, University of Maryland, College Park, MD 20742; DQC, Dept. of ECE and Physics, Duke University, Durham, NC 27701; IonQ Inc., College Park, MD 20742