IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v7y2016i1d10.1038_ncomms13251.html
   My bibliography  Save this article

Experimental verification of multipartite entanglement in quantum networks

Author

Listed:
  • W. McCutcheon

    (Quantum Engineering Technology Laboratory, University of Bristol)

  • A. Pappa

    (School of Informatics, University of Edinburgh)

  • B. A. Bell

    (Quantum Engineering Technology Laboratory, University of Bristol)

  • A. McMillan

    (Quantum Engineering Technology Laboratory, University of Bristol)

  • A. Chailloux

    (INRIA, Paris Rocquencourt, SECRET Project Team)

  • T. Lawson

    (LTCI, CNRS, Telecom ParisTech, Université Paris-Saclay)

  • M. Mafu

    (Botswana International University of Science and Technology)

  • D. Markham

    (LTCI, CNRS, Telecom ParisTech, Université Paris-Saclay)

  • E. Diamanti

    (LTCI, CNRS, Telecom ParisTech, Université Paris-Saclay)

  • I. Kerenidis

    (CNRS IRIF, Université Paris 7
    Centre for Quantum Technologies, National University of Singapore)

  • J. G. Rarity

    (Quantum Engineering Technology Laboratory, University of Bristol)

  • M. S. Tame

    (School of Chemistry and Physics, University of KwaZulu-Natal
    National Institute for Theoretical Physics, University of KwaZulu-Natal)

Abstract

Multipartite entangled states are a fundamental resource for a wide range of quantum information processing tasks. In particular, in quantum networks, it is essential for the parties involved to be able to verify if entanglement is present before they carry out a given distributed task. Here we design and experimentally demonstrate a protocol that allows any party in a network to check if a source is distributing a genuinely multipartite entangled state, even in the presence of untrusted parties. The protocol remains secure against dishonest behaviour of the source and other parties, including the use of system imperfections to their advantage. We demonstrate the verification protocol in a three- and four-party setting using polarization-entangled photons, highlighting its potential for realistic photonic quantum communication and networking applications.

Suggested Citation

  • W. McCutcheon & A. Pappa & B. A. Bell & A. McMillan & A. Chailloux & T. Lawson & M. Mafu & D. Markham & E. Diamanti & I. Kerenidis & J. G. Rarity & M. S. Tame, 2016. "Experimental verification of multipartite entanglement in quantum networks," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13251
    DOI: 10.1038/ncomms13251
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms13251
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms13251?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:7:y:2016:i:1:d:10.1038_ncomms13251. 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.