Capacitively Shunted Flux Qubits for Multi-qubit Architectures

ORAL

Abstract

Capacitively shunted flux qubits (CSFQs) are capable of achieving comparable coherence times to transmon qubits in cQED systems. In addition, the relatively large and positive anharmonicity of the CSFQ can be advantageous for high-fidelity single- and two-qubit gate operations and to address the issue of frequency crowding in multi-qubit systems. We present the design and measurement of various configurations of CSFQ aimed at multi-qubit architectures.

Authors

  • Jaseung Ku

    • Syracuse University
  • Matthew Hutchings

    • Syracuse University
  • Yebin Liu

    • Syracuse University
  • B.L.T. Plourde

    • Syracuse University
  • Jared Hertzberg

    • IBM T.J. Watson Research Center
  • Martin Sandberg

    • IBM T.J. Watson Research Center
  • Markus Brink

    • IBM T.J. Watson Research Center
  • Easwar Magesan

    • IBM T.J. Watson Research Center
  • Firat Solgun

    • IBM T.J. Watson Research Center
  • Jerry Chow

    • IBM T.J. Watson Research Center