Two Cavity Circuit QED

ORAL

Abstract

The circuit QED architecture has proven useful for dispersive manipulation and measurement of superconducting qubits. Previous experiments have shown how to use the AC-Stark shift to spectroscopically extract information about the photon number in the cavity[1]. Here we will show how to extend this toward building a photon statistics analyzer by adding a second cavity to the circuit QED architecture. The second cavity allows for decoupling of the preparation and readout of the cavity field state, opening the way for a measurement of the full photon statistics and reconstruction of the Wigner distribution. \newline \newline [1] Resolving photon number states in a superconducting circuit. D. I. Schuster, et. al. Nature (London) 445 515 (2007).

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Authors

  • Blake Johnson

    Yale University

  • Andrew Houck

    Yale University, Princeton University

  • Jay Gambetta

    University of Waterloo, Institute for quantum computing, IQC and University of Waterloo

  • Alexandre Blais

    Universite de Sherbrooke, University of Sherbrooke

  • Steven Girvin

    Yale University, Yale Applied Physics

  • Michel Devoret

    Yale University, Yale Applied Physics

  • Robert Schoelkopf

    Yale University, Departments of Applied Physics and Physics, Yale University, Yale Applied Physics