Detecting single-Infrared-photon by graphene Josephson junction

ORAL

Abstract

Single-photon detector is a key enabling technology in quantum information processing, cryotography, and deep space communication. However, detecting low frequency photons is challenging because of their vanishingly small energy. Here we will present the concept of a graphene-based Josephson junction single-photon detector that can potentially perform in a wide electromagnetic spectrum. We will focus on our experimental results of the Josephson junction switching induced by single-infrared-photon. We will conclude by its applications in quantum information science, radio astronomy, as well as dark matter detection.

*EDW was supported in part by the Office of Naval Research (No. N00014-14-1-0349). The work at Harvard was supported by the Science and Technology Center for Integrated Quantum Materials, NSF Grant No. DMR-1231319. KCF and TO thank the support of Raytheon BBN Technologies.

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Presenters

  • Kin Chung Fong

    • BBN Technologies
    • Quantum Information Processing Group, Raytheon BBN Technologies

Authors

  • Kin Chung Fong

    • BBN Technologies
    • Quantum Information Processing Group, Raytheon BBN Technologies

  • Evan Walsh

    • MIT

  • Gil-Ho Lee

    • POSTECH
    • Department of Physics, Pohang University of Science and Technology

  • Dmitri K. Efetov

    • ICFO

  • Woo-Chan Jung

    • POSTECH

  • Ko-Fan Huang

    • Harvard University
    • Physics department, Harvard University

  • Thomas A Ohki

    • Raytheon BBN Technologies
    • BBN Technologies

  • Philip Kim

    • Harvard University
    • Department of Physics, Harvard University & School of Engineering and Applied Sciences, Harvard University
    • Department of Physics, Harvard University, Cambridge, MA 02138, USA.
    • Physics, Harvard University
    • Physics and Applied Physics, Harvard University
    • Physics department, Harvard University

  • Dirk R. Englund

    • Electrical Engineering and Computer Science, MIT
    • Massachusetts Institute of Technology
    • MIT
    • EECS, MIT
    • Electrical Engineering and Computer Science, Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology