Fabrication of transmon qubits embedded in superconducting whispering gallery mode resonators

ORAL

Abstract

Superconducting whispering gallery mode resonators (WGMRs) can confine up to 98{\%} of two high quality modes in lossless vacuum [APL 103, 142604]. We have fabricated new WGMR-based devices using standard lithography techniques and in which transmon qubits were integrated. The advantages of this transmon-resonator configuration are i) the possibility to perform a targeted study of thin-film quality factor across different methods and steps of fabrication and ii) precise control of the Hamiltonian parameters.

*Work supported by: IARPA, ARO, and ONR.

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Authors

  • K. Serniak

    • Department of Applied Physics, Yale University

  • Z.K. Minev

    • Department of Applied Physics, Yale University

  • I.M. Pop

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

  • L. Frunzio

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

  • Robert Schoelkopf

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

  • M.H. Devoret

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