Quantum Control of Cavity Resonators, Part II:Experiment

ORAL

Abstract

Harmonic oscillators offer a large Hilbert space that can potentially be used to encode multiple bits of quantum information. The long lifetime of superconducting cavity resonators make them a suitable candidate to explore this direction. Due to the linearity of harmonic oscillators it is not directly obvious how to manipulate them. Here we show that pulses designed using optimal control methods allow us to manipulate the combined cavity -- transmon system on a time-scale of order 1/chi, the dispersive shift; in practice pulses of about a microsecond long. Several example unitary operations addressing the first 8 levels of the resonator are described and characterized.

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Authors

  • Reinier Heeres

    Yale University

  • P. Reinhold

    Yale University, Yale University, Department of Applied Physics, Yale University Department of Applied Physics

  • N. Ofek

    Yale University, Yale University, Department of Applied Physics, Yale University Department of Applied Physics

  • K. Sliwa

    Department of Applied Physics, Yale University, Yale University

  • M. Hatridge

    University of Pittsburgh

  • Stefan Krastanov

    Yale University

  • Liang Jiang

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

  • L. Frunzio

    Yale University, Department of Applied Physics, Yale University, Department of Applied Physics and Physics, Yale University, Yale University, Department of Applied Physics, Yale University Department of Applied Physics

  • M. H. Devoret

    Yale University, Department of Applied Physics, Yale University, Yale Univesity, Department of Applied Physics and Physics, Yale University, Yale University, Department of Applied Physics, Yale University Department of Applied Physics

  • R. J. Schoekopf

    Yale University, Department of Applied Physics, Yale University, Department of Applied Physics and Physics, Yale University, Department of Physics and Applied Physics, Yale University, New Haven, Connecticut, Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA., Yale University, Department of Applied Physics, Yale University Department of Applied Physics