Highly efficient and long-lived optical quantum memory with cold atoms

Y. W. Cho*, G. T. Campbell, J. L. Everett, J. Bernu, D. B. Higginbottom, M. T. Cao, J. Geng, N. P. Robins, P. K. Lam, B. C. Buchler

*Corresponding author for this work

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

    4 Citations (Scopus)

    Abstract

    Quantum memory is an essential element for long distance quantum communi- cation and photonics quantum computation protocols. The practical implementation of such protocols requires an efficient quantum memory with long coherence time. Here, we report a highly efficient coherent optical memory via the gradient echo memory (GEM) technique in cold atoms. The efficiency is as high as 87% with the e-1 coherence time of 1 ms. The ability of quantum storage is verified using heterodyne tomography of small coherent states, showing that our system performs in the quantum regime.

    Original languageEnglish
    Title of host publicationCLEO
    Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2017
    PublisherOptica Publishing Group
    ISBN (Print)9781943580279
    DOIs
    Publication statusPublished - 2017
    EventCLEO: QELS_Fundamental Science, CLEO_QELS 2017 - San Jose, United States
    Duration: 14 May 201719 May 2017

    Publication series

    NameOptics InfoBase Conference Papers
    VolumePart F42-CLEO_QELS 2017
    ISSN (Electronic)2162-2701

    Conference

    ConferenceCLEO: QELS_Fundamental Science, CLEO_QELS 2017
    Country/TerritoryUnited States
    CitySan Jose
    Period14/05/1719/05/17

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