IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-10727-7.html
   My bibliography  Save this article

Secure quantum remote state preparation of squeezed microwave states

Author

Listed:
  • S. Pogorzalek

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München)

  • K. G. Fedorov

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München)

  • M. Xu

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München)

  • A. Parra-Rodriguez

    (University of the Basque Country UPV/EHU)

  • M. Sanz

    (University of the Basque Country UPV/EHU)

  • M. Fischer

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München
    Munich Center for Quantum Science and Technology (MCQST))

  • E. Xie

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München
    Munich Center for Quantum Science and Technology (MCQST))

  • K. Inomata

    (RIKEN Center for Emergent Matter Science (CEMS)
    National Institute of Advanced Industrial Science and Technology)

  • Y. Nakamura

    (RIKEN Center for Emergent Matter Science (CEMS)
    The University of Tokyo)

  • E. Solano

    (University of the Basque Country UPV/EHU
    IKERBASQUE, Basque Foundation for Science
    Shanghai University)

  • A. Marx

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften)

  • F. Deppe

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München
    Munich Center for Quantum Science and Technology (MCQST))

  • R. Gross

    (Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften
    Technische Universität München
    Munich Center for Quantum Science and Technology (MCQST))

Abstract

Quantum communication protocols based on nonclassical correlations can be more efficient than known classical methods and offer intrinsic security over direct state transfer. In particular, remote state preparation aims at the creation of a desired and known quantum state at a remote location using classical communication and quantum entanglement. We present an experimental realization of deterministic continuous-variable remote state preparation in the microwave regime over a distance of 35 cm. By employing propagating two-mode squeezed microwave states and feedforward, we achieve the remote preparation of squeezed states with up to 1.6 dB of squeezing below the vacuum level. Finally, security of remote state preparation is investigated by using the concept of the one-time pad and measuring the von Neumann entropies. We find nearly identical values for the entropy of the remotely prepared state and the respective conditional entropy given the classically communicated information and, thus, demonstrate close-to-perfect security.

Suggested Citation

  • S. Pogorzalek & K. G. Fedorov & M. Xu & A. Parra-Rodriguez & M. Sanz & M. Fischer & E. Xie & K. Inomata & Y. Nakamura & E. Solano & A. Marx & F. Deppe & R. Gross, 2019. "Secure quantum remote state preparation of squeezed microwave states," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10727-7
    DOI: 10.1038/s41467-019-10727-7
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-10727-7
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-10727-7?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:10:y:2019:i:1:d:10.1038_s41467-019-10727-7. 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.