論文

査読有り 本文へのリンクあり
2020年5月27日

Resource Reduction for Distributed Quantum Information Processing Using Quantum Multiplexed Photons

Physical Review Letters
  • Nicolò Lo Piparo
  • ,
  • Michael Hanks
  • ,
  • Claude Gravel
  • ,
  • Kae Nemoto
  • ,
  • William J. Munro

124
21
開始ページ
210503-1
終了ページ
210503-6
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/physrevlett.124.210503
出版者・発行元
American Physical Society (APS)

© 2020 American Physical Society.. Distributed quantum information processing is based on the transmission of quantum data over lossy channels between quantum processing nodes. These nodes may be separated by a few microns or on planetary scale distances, but transmission losses due to absorption and/or scattering in the channel are the major source of error for most distributed quantum information tasks. Of course, quantum error correction (QEC) and detection techniques can be used to mitigate such effects, but error detection approaches have severe performance limitations due to the signaling constraints between nodes, and so error correction approaches are preferable - assuming one has sufficient high quality local operations. Typically, performance comparisons between loss-mitigating codes assume one encoded qubit per photon. However, single photons can carry more than one qubit of information and so our focus in this Letter is to explore whether loss-based QEC codes utilizing quantum multiplexed photons are viable and advantageous, especially as photon loss results in more than one qubit of information being lost. We show that quantum multiplexing enables significant resource reduction, in terms of the number of single-photon sources, while at the same time maintaining (or even lowering) the number of 2-qubit gates required. Further, our multiplexing approach requires only conventional optical gates already necessary for the implementation of these codes.

リンク情報
DOI
https://doi.org/10.1103/physrevlett.124.210503
arXiv
http://arxiv.org/abs/arXiv:1907.02240
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32530652
URL
https://link.aps.org/article/10.1103/PhysRevLett.124.210503
URL
http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.124.210503/fulltext
Arxiv Url
http://arxiv.org/abs/1907.02240v1
Arxiv Url
http://arxiv.org/pdf/1907.02240v1 本文へのリンクあり
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085966254&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85085966254&origin=inward
ID情報
  • DOI : 10.1103/physrevlett.124.210503
  • ISSN : 0031-9007
  • eISSN : 1079-7114
  • arXiv ID : arXiv:1907.02240
  • PubMed ID : 32530652
  • SCOPUS ID : 85085966254
  • 共同研究・競争的資金等の研究課題の業績ID : 13158980

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