File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Efficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection

TitleEfficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection
Authors
Issue Date2021
PublisherNature Research: Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html
Citation
Nature Communications, 2021, v. 12 n. 1, p. article no. 4464 How to Cite?
AbstractQuantum communication complexity explores the minimum amount of communication required to achieve certain tasks using quantum states. One representative example is quantum fingerprinting, in which the minimum amount of communication could be exponentially smaller than the classical fingerprinting. Here, we propose a quantum fingerprinting protocol where coherent states and channel multiplexing are used, with simultaneous detection of signals carried by multiple channels. Compared with an existing coherent quantum fingerprinting protocol, our protocol could consistently reduce communication time and the amount of communication by orders of magnitude by increasing the number of channels. Our proposed protocol can even beat the classical limit without using superconducting-nanowire single photon detectors. We also report a proof-of-concept experimental demonstration with six wavelength channels to validate the advantage of our protocol in the amount of communication. The experimental results clearly prove that our protocol not only surpasses the best-known classical protocol, but also remarkably outperforms the existing coherent quantum fingerprinting protocol.
Persistent Identifierhttp://hdl.handle.net/10722/304278
ISSN
2023 Impact Factor: 14.7
2023 SCImago Journal Rankings: 4.887
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhong, X-
dc.contributor.authorXu, F-
dc.contributor.authorLo, HK-
dc.contributor.authorQian, L-
dc.date.accessioned2021-09-23T08:57:46Z-
dc.date.available2021-09-23T08:57:46Z-
dc.date.issued2021-
dc.identifier.citationNature Communications, 2021, v. 12 n. 1, p. article no. 4464-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/304278-
dc.description.abstractQuantum communication complexity explores the minimum amount of communication required to achieve certain tasks using quantum states. One representative example is quantum fingerprinting, in which the minimum amount of communication could be exponentially smaller than the classical fingerprinting. Here, we propose a quantum fingerprinting protocol where coherent states and channel multiplexing are used, with simultaneous detection of signals carried by multiple channels. Compared with an existing coherent quantum fingerprinting protocol, our protocol could consistently reduce communication time and the amount of communication by orders of magnitude by increasing the number of channels. Our proposed protocol can even beat the classical limit without using superconducting-nanowire single photon detectors. We also report a proof-of-concept experimental demonstration with six wavelength channels to validate the advantage of our protocol in the amount of communication. The experimental results clearly prove that our protocol not only surpasses the best-known classical protocol, but also remarkably outperforms the existing coherent quantum fingerprinting protocol.-
dc.languageeng-
dc.publisherNature Research: Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html-
dc.relation.ispartofNature Communications-
dc.rightsNature Communications. Copyright © Nature Research: Fully open access journals.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleEfficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection-
dc.typeArticle-
dc.identifier.emailLo, HK: physrdd@hku.hk-
dc.identifier.authorityLo, HK=rp02679-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/s41467-021-24745-x-
dc.identifier.pmid34294720-
dc.identifier.pmcidPMC8298536-
dc.identifier.scopuseid_2-s2.0-85111142376-
dc.identifier.hkuros325230-
dc.identifier.volume12-
dc.identifier.issue1-
dc.identifier.spagearticle no. 4464-
dc.identifier.epagearticle no. 4464-
dc.identifier.isiWOS:000686581300027-
dc.publisher.placeUnited Kingdom-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats