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Single microwave-photon detector using an artificial Λ-type three-level system

Author

Listed:
  • Kunihiro Inomata

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Zhirong Lin

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Kazuki Koshino

    (College of Liberal Arts and Sciences, Tokyo Medical and Dental University)

  • William D. Oliver

    (MIT Lincoln Laboratory
    Departent of Physics, Massachusetts Institute of Technology)

  • Jaw-Shen Tsai

    (RIKEN Center for Emergent Matter Science (CEMS)
    Tokyo University of Science)

  • Tsuyoshi Yamamoto

    (NEC IoT Device Research Laboratories)

  • Yasunobu Nakamura

    (RIKEN Center for Emergent Matter Science (CEMS)
    Research Center for Advanced Science and Technology (RCAST), The University of Tokyo)

Abstract

Single-photon detection is a requisite technique in quantum-optics experiments in both the optical and the microwave domains. However, the energy of microwave quanta are four to five orders of magnitude less than their optical counterpart, making the efficient detection of single microwave photons extremely challenging. Here we demonstrate the detection of a single microwave photon propagating through a waveguide. The detector is implemented with an impedance-matched artificial Λ system comprising the dressed states of a driven superconducting qubit coupled to a microwave resonator. Each signal photon deterministically induces a Raman transition in the Λ system and excites the qubit. The subsequent dispersive readout of the qubit produces a discrete ‘click’. We attain a high single-photon-detection efficiency of 0.66±0.06 with a low dark-count probability of 0.014±0.001 and a reset time of ∼400 ns. This detector can be exploited for various applications in quantum sensing, quantum communication and quantum information processing.

Suggested Citation

  • Kunihiro Inomata & Zhirong Lin & Kazuki Koshino & William D. Oliver & Jaw-Shen Tsai & Tsuyoshi Yamamoto & Yasunobu Nakamura, 2016. "Single microwave-photon detector using an artificial Λ-type three-level system," Nature Communications, Nature, vol. 7(1), pages 1-7, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12303
    DOI: 10.1038/ncomms12303
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    Cited by:

    1. Ladeynov, D.A. & Egorov, D.G. & Pankratov, A.L., 2023. "Stochastic versus dynamic resonant activation to enhance threshold detector sensitivity," Chaos, Solitons & Fractals, Elsevier, vol. 171(C).

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