Characterization of Single- and Two-qubit Gates between Transmons and Capacitively Shunted Flux Qubits

ORAL

Abstract

Capacitively shunted flux qubits (CSFQs) with high coherence hold promise for improved single- and two-qubit gate operations due to their relatively large and positive anharmonicity. When paired with transmon qubits, CSFQs may lead to a novel regime for two-qubit gates based on the cross resonance interaction. We fabricated a two-qubit system consisting of a CSFQ and a fixed-frequency transmon coupled via a bus cavity and we characterized the fidelity of single- and two-qubit gate operations. In this talk, we will present experimental results from these measurements.

Presenters

  • Jaseung Ku

    • Syracuse University

Authors

  • Jaseung Ku

    • Syracuse University
  • Yebin Liu

    • Physics, Syracuse University
    • Syracuse University
  • Britton L Plourde

    • Physics, Syracuse University
    • Syracuse University
    • Syracuse Univ
    • Department of Physics, Syracuse University
  • Xuexin Xu

    • Peter Grünberg Institute, Forschungszentrum Julich
    • Peter Grünberg Institute, Forschungszentrum Jülich
    • Peter Grünberg Institute
  • Mohammad H. Ansari

    • Peter Grünberg Institute, Forschungszentrum Julich
    • Peter Grünberg Institute, Forschungszentrum Jülich
    • Peter Grünberg Institute
    • Forschungszentrum Julich
  • Jared B Hertzberg

    • IBM T J Watson Res Ctr
    • IBM T.J. Watson Research Center
    • IBM T. J. Watson Research Center
    • IBM Thomas J. Watson Research Center
  • Markus Brink

    • IBM T J Watson Res Ctr
    • IBM T.J. Watson Research Center
    • IBM Thomas J. Watson Research Center
  • Jerry M. Chow

    • IBM Thomas J. Watson Research Center
    • IBM T J Watson Res Ctr
    • IBM T.J. Watson Research Center
    • IBM T. J. Watson Research Center