Efficient Tunable Microwave Single-photon Source Based on Transmon Qubit

Yu Zhou, Zhihui Peng, Yuta Horiuchi, O. V. Astafiev, J. S. Tsai

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Single-photon sources of high efficiency are of great interest because they are the key elements in many prospective quantum technologies and applications. Based on our previous work, here we demonstrate a high-quality tunable microwave single-photon source based on transmon qubit with intrinsic emission efficiency more than 99%. To further confirm the single-photon property of the source, we study the single-photon interference in a Hanbury-Brown-Twiss (HBT) type setup and measure the correlation functions of the emission field using linear detectors with GPU-enhanced signal processing technique. The antibunching in second-order correlation function is clearly observed. The theoretical calculations agree well with the experimental results. Such a high-quality single-photon source may be used as a building block for quantum communication, simulation and information processing in microwave regime.

    Original languageEnglish
    Title of host publicationISEC 2019 - International Superconductive Electronics Conference
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728111964
    DOIs
    Publication statusPublished - Jul 2019
    Event17th IEEE International Superconductive Electronics Conference, ISEC 2019 - Riverside, United States
    Duration: 28 Jul 20191 Aug 2019

    Publication series

    NameISEC 2019 - International Superconductive Electronics Conference

    Conference

    Conference17th IEEE International Superconductive Electronics Conference, ISEC 2019
    Country/TerritoryUnited States
    CityRiverside
    Period28/07/191/08/19

    Keywords

    • microwave single-photon
    • superconducting qubit
    • tunable

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