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.

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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