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.

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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