On-demand microwave generator of shaped single photons

ORAL

Abstract

We present results of a microwave single-photon generator where the emission rate of a superconducting qubit is controlled in real time and photon wavepackets are emitted with a shaped profile. Controlling the radiative properties of quantum emitters has important applications in quantum information science. Arbitrarily shaped photon wavepackets could have an important role in, e.g., quantum networks as well as connecting spatially-isolated sectors of future quantum processors. The modulation is achieved by controlling the position of the nodes of vacuum modes in a semi-infinite transmission line shunted by a dc-SQUID. Besides its practical application as a photon source, this work enables fundamental studies of artificial atoms interacting with a quantum vacuum, leading to controlled dissipative processes and their effect in quantum information applications.

*We acknowledge NSERC of Canada, Industry Canada, the Canadian Foundation for Innovation, the Ontario Ministry of Research and Innovation for funding, the Beatriu de Pinós fellowship, Spanish MINECO/FEDER FIS2015-69983-P, and Basque Government IT986-16.

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Presenters

  • Pol Forn-Diaz

    • Barcelona Supercomputing Center

Authors

  • Pol Forn-Diaz

    • Barcelona Supercomputing Center

  • Chris Warren

    • Institute for Quantum Computing and Department of Electrical Engineering, University of Waterloo

  • Adrian Parra

    • Department of Physical Chemistry, University of the Basque Country UPV/EHU

  • Chung Wai Sandbo Chang

    • Institute for Quantum Computing and Department of Electrical Engineering, University of Waterloo

  • A. Vadiraj

    • Institute for Quantum Computing
    • IQC, ECE, University of Waterloo
    • Institute for Quantum Computing and Department of Electrical Engineering, University of Waterloo

  • Laura García Álvarez

    • Department of Physical Chemistry, University of the Basque Country UPV/EHU

  • Enrique Solano

    • University of the Basque Country UPV/EHU
    • Department of Physical Chemistry, University of the Basque Country UPV/EHU; IKERBASQUE, Basque Foundation for Science
    • IKERBASQUE, Basque Foundation for Science

  • Christopher Wilson

    • IQC, ECE, University of Waterloo
    • Institute for Quantum Computing and Department of Electrical Engineering, University of Waterloo