Inline Cavity Qubit with Bifuraction Readout

ORAL

Abstract

We present the design and data from a new, strongly coupled superconducting qubit based on Josephson junctions and a strictly 1-dimensional distributed element geometry that operates in the Transmon regime. A cavity bifurcation amplifier is used to read the state of the qubit. The same circuit also supports a linear dispersive readout, which enables direct comparison between the latching and dispersive scheme. Most recent results will be discussed.

Authors

  • Markus Brink

    • Yale University
  • Nicholas A. Masluk

    • Yale University
  • Kurtis L. Geerlings

    • Yale University
  • Michael Metcalfe

    • NIST Gaithersburg
  • Vladimir Manucharyan

    • Yale University
    • Yale Applied Physics
  • Luigi Frunzio

    • Yale University
    • Dept. of Applied Physics, Yale University
  • Steven Girvin

    • Yale University
    • Yale Applied Physics
  • Robert Schoelkopf

    • Yale University
    • Departments of Applied Physics and Physics, Yale University
    • Yale Applied Physics
  • Michel Devoret

    • Yale University
    • Yale Applied Physics