Engineering non-linear resonator mode interactions in circuit QED by continuous driving: Manipulation of a photonic quantum memory

ORAL

Abstract

Recent advances in circuit QED have shown great potential for using microwave resonators as quantum memories. In particular, it is possible to encode the state of a quantum bit in non-classical photonic states inside a high-Q linear resonator. An outstanding challenge is to perform controlled operations on such a photonic state. We demonstrate experimentally how a continuous drive on a transmon qubit coupled to a high-Q storage resonator can be used to induce non-linear dynamics of the resonator. Tailoring the drive properties allows us to cancel or enhance non-linearities in the system such that we can manipulate the state stored in the cavity. This approach can be used to either counteract undesirable evolution due to the bare Hamiltonian of the system or, ultimately, to perform logical operations on the state encoded in the cavity field. Our method provides a promising pathway towards performing universal control for quantum states stored in high-coherence resonators in the circuit QED platform.

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Authors

  • Matthew Reagor

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

  • Wolfgang Pfaff

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

  • Reinier W. Heeres

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

  • Nissim Ofek

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

  • Kevin Chou

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

  • Jacob Blumoff

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

  • Z. Leghtas

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

  • Steven Touzard

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

  • K.M. Sliwa

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

  • Eric Holland

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

  • Victor V. Albert

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

  • L. Frunzio

    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

  • Liang Jiang

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