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dc.contributor.authorGuan, Jian-Yu
dc.contributor.authorXu, Feihu
dc.contributor.authorYin, Hua-Lei
dc.contributor.authorLi, Yuan
dc.contributor.authorZhang, Wei-Jun
dc.contributor.authorChen, Si-Jing
dc.contributor.authorYang, Xiao-Yan
dc.contributor.authorLi, Li
dc.contributor.authorYou, Li-Xing
dc.contributor.authorChen, Teng-Yun
dc.contributor.authorWang, Zhen
dc.contributor.authorZhang, Qiang
dc.contributor.authorPan, Jian-Wei
dc.date.accessioned2017-03-24T17:48:32Z
dc.date.available2017-03-24T17:48:32Z
dc.date.issued2016-06
dc.date.submitted2016-03
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/1721.1/107695
dc.description.abstractQuantum communication has historically been at the forefront of advancements, from fundamental tests of quantum physics to utilizing the quantum-mechanical properties of physical systems for practical applications. In the field of communication complexity, quantum communication allows the advantage of an exponential reduction in the transmitted information over classical communication to accomplish distributed computational tasks. However, to date, demonstrating this advantage in a practical setting continues to be a central challenge. Here, we report a proof-of-principle experimental demonstration of a quantum fingerprinting protocol that for the first time surpasses the ultimate classical limit to transmitted information. Ultralow noise superconducting single-photon detectors and a stable fiber-based Sagnac interferometer are used to implement a quantum fingerprinting system that is capable of transmitting less information than the classical proven lower bound over 20 km standard telecom fiber for input sizes of up to 2 Gbits. The results pave the way for experimentally exploring the advanced features of quantum communication and open a new window of opportunity for research in communication complexity and testing the foundations of physics.en_US
dc.description.sponsorshipNational Fundamental Research Program of China (Grants No. 2011CB921300 and No. 2013CB3368000en_US
dc.description.sponsorshipNational Natural Science Foundation (China)en_US
dc.description.sponsorshipChinese Academy of Sciencesen_US
dc.description.sponsorship10000-Plan of Shandong Provinceen_US
dc.description.sponsorshipManagement Committee of Shanghai Zhangjiang High-Technology Industrial Development Zoneen_US
dc.description.sponsorshipUnited States. Office of Naval Researchen_US
dc.description.sponsorshipUnited States. Air Force Office of Scientific Researchen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.116.240502en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleObservation of Quantum Fingerprinting Beating the Classical Limiten_US
dc.typeArticleen_US
dc.identifier.citationGuan, Jian-Yu et al. “Observation of Quantum Fingerprinting Beating the Classical Limit.” Physical Review Letters 116.24 (2016): n. pag. CrossRef. Web. 24 Mar. 2017. © 2016 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronicsen_US
dc.contributor.mitauthorXu, Feihu
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2016-06-13T22:00:04Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsGuan, Jian-Yu; Xu, Feihu; Yin, Hua-Lei; Li, Yuan; Zhang, Wei-Jun; Chen, Si-Jing; Yang, Xiao-Yan; Li, Li; You, Li-Xing; Chen, Teng-Yun; Wang, Zhen; Zhang, Qiang; Pan, Jian-Weien_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-1643-225X
mit.licensePUBLISHER_POLICYen_US


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