IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v3y2012i1d10.1038_ncomms1628.html
   My bibliography  Save this article

Conclusive quantum steering with superconducting transition-edge sensors

Author

Listed:
  • Devin H. Smith

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Geoff Gillett

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Marcelo P. de Almeida

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Cyril Branciard

    (School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Alessandro Fedrizzi

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Till J. Weinhold

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

  • Adriana Lita

    (National Institute of Standards and Technology)

  • Brice Calkins

    (National Institute of Standards and Technology)

  • Thomas Gerrits

    (National Institute of Standards and Technology)

  • Howard M. Wiseman

    (Centre for Quantum Computation and Communication Technology (Australian Research Council), Centre for Quantum Dynamics, Griffith University)

  • Sae Woo Nam

    (National Institute of Standards and Technology)

  • Andrew G. White

    (Centre for Engineered Quantum Systems and Centre for Quantum Computation and Communication Technology (Australian Research Council), University of Queensland
    School of Mathematics and Physics, University of Queensland, 4072 Brisbane, Queensland, Australia.)

Abstract

Quantum steering allows two parties to verify shared entanglement even if one measurement device is untrusted. A conclusive demonstration of steering through the violation of a steering inequality is of considerable fundamental interest and opens up applications in quantum communication. To date, all experimental tests with single-photon states have relied on post selection, allowing untrusted devices to cheat by hiding unfavourable events in losses. Here we close this 'detection loophole' by combining a highly efficient source of entangled photon pairs with superconducting transition-edge sensors. We achieve an unprecedented ∼62% conditional detection efficiency of entangled photons and violate a steering inequality with the minimal number of measurement settings by 48 s.d.s. Our results provide a clear path to practical applications of steering and to a photonic loophole-free Bell test.

Suggested Citation

  • Devin H. Smith & Geoff Gillett & Marcelo P. de Almeida & Cyril Branciard & Alessandro Fedrizzi & Till J. Weinhold & Adriana Lita & Brice Calkins & Thomas Gerrits & Howard M. Wiseman & Sae Woo Nam & An, 2012. "Conclusive quantum steering with superconducting transition-edge sensors," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1628
    DOI: 10.1038/ncomms1628
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms1628
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms1628?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
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Costa, A.C.S. & Beims, M.W. & Angelo, R.M., 2016. "Generalized discord, entanglement, Einstein–Podolsky–Rosen steering, and Bell nonlocality in two-qubit systems under (non-)Markovian channels: Hierarchy of quantum resources and chronology of deaths a," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 461(C), pages 469-479.

    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:3:y:2012:i:1:d:10.1038_ncomms1628. 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.