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Quantum-dot spin–photon entanglement via frequency downconversion to telecom wavelength

Author

Listed:
  • Kristiaan De Greve

    (E. L. Ginzton Laboratory, Stanford University
    Present address: Department of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA.)

  • Leo Yu

    (E. L. Ginzton Laboratory, Stanford University)

  • Peter L. McMahon

    (E. L. Ginzton Laboratory, Stanford University)

  • Jason S. Pelc

    (E. L. Ginzton Laboratory, Stanford University)

  • Chandra M. Natarajan

    (E. L. Ginzton Laboratory, Stanford University
    Scottish Universities Physics Alliance and School of Engineering and Physical Sciences, Heriot-Watt University)

  • Na Young Kim

    (E. L. Ginzton Laboratory, Stanford University)

  • Eisuke Abe

    (E. L. Ginzton Laboratory, Stanford University
    National Institute of Informatics, Hitotsubashi 2-1-2, Chiyoda-ku, Tokyo 101-8403, Japan)

  • Sebastian Maier

    (Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany)

  • Christian Schneider

    (Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany)

  • Martin Kamp

    (Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany)

  • Sven Höfling

    (E. L. Ginzton Laboratory, Stanford University
    Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany)

  • Robert H. Hadfield

    (Scottish Universities Physics Alliance and School of Engineering and Physical Sciences, Heriot-Watt University)

  • Alfred Forchel

    (Technische Physik, Physikalisches Institut, Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany)

  • M. M. Fejer

    (E. L. Ginzton Laboratory, Stanford University)

  • Yoshihisa Yamamoto

    (E. L. Ginzton Laboratory, Stanford University
    National Institute of Informatics, Hitotsubashi 2-1-2, Chiyoda-ku, Tokyo 101-8403, Japan)

Abstract

Entanglement of the spin of an electron in a semiconductor quantum dot with a single photon is reported, and verified by means of time-resolved frequency downconversion to a telecommunications wavelength; this process is an essential requirement for future quantum networks.

Suggested Citation

  • Kristiaan De Greve & Leo Yu & Peter L. McMahon & Jason S. Pelc & Chandra M. Natarajan & Na Young Kim & Eisuke Abe & Sebastian Maier & Christian Schneider & Martin Kamp & Sven Höfling & Robert H. Hadfi, 2012. "Quantum-dot spin–photon entanglement via frequency downconversion to telecom wavelength," Nature, Nature, vol. 491(7424), pages 421-425, November.
    • Handle: RePEc:nat:nature:v:491:y:2012:i:7424:d:10.1038_nature11577
    DOI: 10.1038/nature11577
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    Citations

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    Cited by:

    1. P. Laccotripes & T. Müller & R. M. Stevenson & J. Skiba-Szymanska & D. A. Ritchie & A. J. Shields, 2024. "Spin-photon entanglement with direct photon emission in the telecom C-band," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Chiao-Hsuan Wang & Fangxin Li & Liang Jiang, 2022. "Quantum capacities of transducers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Łukasz Dusanowski & Cornelius Nawrath & Simone L. Portalupi & Michael Jetter & Tobias Huber & Sebastian Klembt & Peter Michler & Sven Höfling, 2022. "Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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