Engineering stabilizer measurements in circuit QED: I

ORAL

Abstract

Quantum error correction based on stabilizer codes has emerged as an attractive approach towards building a practical quantum information processor. One requirement for such a device is the ability to perform hardware efficient measurements on registers of qubits. We demonstrate a new protocol to realize such multi-qubit measurements. ~A key feature of our approach is that it enables arbitrary stabilizer measurements to be selected in software, and requires a relatively small number of buses, ancillae, and control lines. This allows for a minimally complex sample realizing a simple dispersive hamiltonian while maintaining a high degree of decoupling between our fixed-tuned qubits. We experimentally implement these measurements in 3D circuit QED using transmon qubits coupled to a common bus resonator. In this first of two talks, we introduce our 3D cQED system and describe the protocol for measuring n-qubit parities of a three qubit register.

*We acknowledge funding from ARO

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Authors

  • Kevin Chou

    • Yale University

  • Jacob Blumoff

    • Yale University

  • M. Reagor

    • Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
    • Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA.
    • Yale University

  • C. Axline

    • Yale University

  • R. Brierley

    • Yale University
    • Departments of Physics and Applied Physics, Yale University

  • S. Nigg

    • University of Basel

  • P. Reinhold

    • Yale University
    • Yale University, Department of Applied Physics
    • Yale University Department of Applied Physics

  • R. Heeres

    • Yale University
    • Yale University, Department of Applied Physics
    • Yale University Department of Applied Physics

  • C. Wang

    • Yale University

  • K. Sliwa

    • Department of Applied Physics, Yale University
    • Yale University

  • A. Narla

    • Department of Applied Physics, Yale University
    • Yale University

  • M. Hatridge

    • University of Pittsburgh

  • Liang Jiang

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

  • M. H. Devoret

    • Yale University
    • Department of Applied Physics, Yale University
    • Yale Univesity
    • Department of Applied Physics and Physics, Yale University
    • Yale University, Department of Applied Physics
    • Yale University Department of Applied Physics

  • S. M. Girvin

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

  • R. J. Schoekopf

    • Yale University
    • Department of Applied Physics, Yale University
    • Department of Applied Physics and Physics, Yale University
    • Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
    • Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA.
    • Yale University, Department of Applied Physics
    • Yale University Department of Applied Physics