IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_ncomms15716.html
   My bibliography  Save this article

A solid state source of photon triplets based on quantum dot molecules

Author

Listed:
  • Milad Khoshnegar

    (University of Waterloo
    Institute for Quantum Computing, University of Waterloo
    Waterloo Institute for Nanotechnology, University of Waterloo)

  • Tobias Huber

    (Institut für Experimentalphysik, Universität Innsbruck)

  • Ana Predojević

    (Institut für Experimentalphysik, Universität Innsbruck)

  • Dan Dalacu

    (National Research Council of Canada)

  • Maximilian Prilmüller

    (Institut für Experimentalphysik, Universität Innsbruck)

  • Jean Lapointe

    (National Research Council of Canada)

  • Xiaohua Wu

    (National Research Council of Canada)

  • Philippe Tamarat

    (Université Bordeaux, LP2N Institut d’Optique and CNRS)

  • Brahim Lounis

    (Université Bordeaux, LP2N Institut d’Optique and CNRS)

  • Philip Poole

    (National Research Council of Canada)

  • Gregor Weihs

    (Institute for Quantum Computing, University of Waterloo
    Institut für Experimentalphysik, Universität Innsbruck)

  • Hamed Majedi

    (University of Waterloo
    Waterloo Institute for Nanotechnology, University of Waterloo)

Abstract

Producing advanced quantum states of light is a priority in quantum information technologies. In this context, experimental realizations of multipartite photon states would enable improved tests of the foundations of quantum mechanics as well as implementations of complex quantum optical networks and protocols. It is favourable to directly generate these states using solid state systems, for simpler handling and the promise of reversible transfer of quantum information between stationary and flying qubits. Here we use the ground states of two optically active coupled quantum dots to directly produce photon triplets. The formation of a triexciton in these ground states leads to a triple cascade recombination and sequential emission of three photons with strong correlations. We record 65.62 photon triplets per minute under continuous-wave pumping, surpassing rates of earlier reported sources. Our structure and data pave the way towards implementing multipartite photon entanglement and multi-qubit readout schemes in solid state devices.

Suggested Citation

  • Milad Khoshnegar & Tobias Huber & Ana Predojević & Dan Dalacu & Maximilian Prilmüller & Jean Lapointe & Xiaohua Wu & Philippe Tamarat & Brahim Lounis & Philip Poole & Gregor Weihs & Hamed Majedi, 2017. "A solid state source of photon triplets based on quantum dot molecules," Nature Communications, Nature, vol. 8(1), pages 1-8, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15716
    DOI: 10.1038/ncomms15716
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms15716
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms15716?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15716. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.