Protected C-Parity Qubits Part 2: Gate Operations

ORAL

Abstract

Topologically protected qubits are an area of growing interest and active research, with the potential for orders-of-magnitude improvements in coherence. One such protected qubit is the charge-parity (C-parity) qubit, which consists of a pi-periodic Josephson element shunted by a large capacitance. In this talk we describe the implementation of protected gate operations in the C-parity qubit. Operations involve the modulation of capacitive and inductive shunt elements using SQUID switches that are integrated into the qubit device. We describe the fabrication and characterization of C-parity qubits involving integrated SQUID switches, and we discuss the path to experimental implementation of protected operations.

*This work was supported by ARO/LPS under Grant No. W911NF-18-1-0106.

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Presenters

  • Abigail Shearrow

    • University of Wisconsin - Madison

Authors

  • Abigail Shearrow

    • University of Wisconsin - Madison

  • Shaojiang Zhu

    • University of Wisconsin - Madison

  • Sohair Abdullah

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Kenneth Dodge

    • Syracuse University

  • Yebin Liu

    • Syracuse University

  • Bradley G. Cole

    • Syracuse University

  • Jaseung Ku

    • Syracuse University

  • Michael Senatore

    • Syracuse University

  • Andrey Klots

    • University of Wisconsin - Madison

  • Lara Faoro

    • University of Wisconsin - Madison

  • Lev B Ioffe

    • Google
    • Google Inc - Santa Barbara
    • Google Inc.
    • Google, Inc., Venice, CA 90291 USA

  • Britton Plourde

    • Syracuse University

  • Robert McDermott

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison