IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v13y2022i1d10.1038_s41467-022-33922-5.html
   My bibliography  Save this article

Entanglement-assisted quantum communication with simple measurements

Author

Listed:
  • Amélie Piveteau

    (Stockholm University)

  • Jef Pauwels

    (Université libre de Bruxelles (ULB))

  • Emil Håkansson

    (Stockholm University
    Hitachi Energy Research)

  • Sadiq Muhammad

    (Stockholm University)

  • Mohamed Bourennane

    (Stockholm University)

  • Armin Tavakoli

    (Institute for Quantum Optics and Quantum Information - IQOQI Vienna, Austrian Academy of Sciences
    Atominstitut, Technische Universität Wien)

Abstract

Dense coding is the seminal example of how entanglement can boost qubit communication, from sending one bit to sending two bits. This is made possible by projecting separate particles onto a maximally entangled basis. We investigate more general communication tasks, in both theory and experiment, and show that simpler measurements enable strong and sometimes even optimal entanglement-assisted qubit communication protocols. Using only partial Bell state analysers for two qubits, we demonstrate quantum correlations that cannot be simulated with two bits of classical communication. Then, we show that there exists an established and operationally meaningful task for which product measurements are sufficient for the strongest possible quantum predictions based on a maximally entangled two-qubit state. Our results reveal that there are scenarios in which the power of entanglement in enhancing quantum communication can be harvested in simple and scalable optical experiments.

Suggested Citation

  • Amélie Piveteau & Jef Pauwels & Emil Håkansson & Sadiq Muhammad & Mohamed Bourennane & Armin Tavakoli, 2022. "Entanglement-assisted quantum communication with simple measurements," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33922-5
    DOI: 10.1038/s41467-022-33922-5
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-022-33922-5
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-022-33922-5?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
    ---><---

    References listed on IDEAS

    as
    1. B. Hensen & H. Bernien & A. E. Dréau & A. Reiserer & N. Kalb & M. S. Blok & J. Ruitenberg & R. F. L. Vermeulen & R. N. Schouten & C. Abellán & W. Amaya & V. Pruneri & M. W. Mitchell & M. Markham & D. , 2015. "Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres," Nature, Nature, vol. 526(7575), pages 682-686, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Yang, Yan-Han & Yang, Xue & Luo, Ming-Xing, 2023. "Device-independently verifying full network nonlocality of quantum networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 617(C).
    2. 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.
    3. A. Haykal & R. Tanos & N. Minotto & A. Durand & F. Fabre & J. Li & J. H. Edgar & V. Ivády & A. Gali & T. Michel & A. Dréau & B. Gil & G. Cassabois & V. Jacques, 2022. "Decoherence of V $${}_{{{{{{{{\rm{B}}}}}}}}}^{-}$$ B − spin defects in monoisotopic hexagonal boron nitride," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    4. Timothy Y. Chow, 2023. "A Mathematician Reads the Kalam Cosmological Argument," The Mathematical Intelligencer, Springer, vol. 45(2), pages 150-158, June.
    5. Nadia O. Antoniadis & Mark R. Hogg & Willy F. Stehl & Alisa Javadi & Natasha Tomm & Rüdiger Schott & Sascha R. Valentin & Andreas D. Wieck & Arne Ludwig & Richard J. Warburton, 2023. "Cavity-enhanced single-shot readout of a quantum dot spin within 3 nanoseconds," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    6. Gomes, V.S. & Dieguez, P.R. & Vasconcelos, H.M., 2022. "Realism-based nonlocality: Invariance under local unitary operations and asymptotic decay for thermal correlated states," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 601(C).
    7. Chao Wang & Ignatius William Primaatmaja & Hong Jie Ng & Jing Yan Haw & Raymond Ho & Jianran Zhang & Gong Zhang & Charles Lim, 2023. "Provably-secure quantum randomness expansion with uncharacterised homodyne detection," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    8. Dario Lago-Rivera & Jelena V. Rakonjac & Samuele Grandi & Hugues de Riedmatten, 2023. "Long distance multiplexed quantum teleportation from a telecom photon to a solid-state qubit," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    9. Ruotian Gong & Xinyi Du & Eli Janzen & Vincent Liu & Zhongyuan Liu & Guanghui He & Bingtian Ye & Tongcang Li & Norman Y. Yao & James H. Edgar & Erik A. Henriksen & Chong Zu, 2024. "Isotope engineering for spin defects in van der Waals materials," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    10. Ruotian Gong & Guanghui He & Xingyu Gao & Peng Ju & Zhongyuan Liu & Bingtian Ye & Erik A. Henriksen & Tongcang Li & Chong Zu, 2023. "Coherent dynamics of strongly interacting electronic spin defects in hexagonal boron nitride," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

    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:13:y:2022:i:1:d:10.1038_s41467-022-33922-5. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.