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dc.contributor.authorTakagi, Ryuji
dc.contributor.authorWang, Kun
dc.contributor.authorHayashi, Masahito
dc.date.accessioned2020-06-16T15:08:57Z
dc.date.available2020-06-16T15:08:57Z
dc.date.issued2020-03
dc.date.submitted2019-11
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttps://hdl.handle.net/1721.1/125817
dc.description.abstractWe introduce a resource theory of channels relevant to communication via quantum channels, in which the set of constant channels—useless channels for communication tasks—are considered as free resources. We find that our theory with such a simple structure is useful to address central problems in quantum Shannon theory—in particular, we provide a converse bound for the one-shot nonsignaling assisted classical capacity that naturally leads to its strong converse property, as well as obtain the one-shot channel simulation cost with nonsignaling assistance. We clarify an intimate connection between the nonsignaling assistance and our formalism by identifying the nonsignaling assisted channel coding with the channel transformation under the maximal set of resource nongenerating superchannels, providing a physical characterization of the latter. Our results provide new perspectives and concise arguments to those problems, connecting the recently developed fields of resource theories to “classic” settings in quantum information theory and shedding light on the validity of resource theories of channels as effective tools to address practical problems.en_US
dc.description.sponsorshipSPS Grant-in-Aid for Scientific Research (A) No. 17H01280 and for Scientific Research (B) No. 16KT0017en_US
dc.publisherAmerican Physical Society (APS)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.124.120502en_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.titleApplication of the Resource Theory of Channels to Communication Scenariosen_US
dc.typeArticleen_US
dc.identifier.citationTakagi, Ryuji, Kun Wang, and Masahito Hayashi. "Application of the Resource Theory of Channels to Communication Scenarios." Physical Review Letters, 124, 12 (March 2020): 120502. © 2020 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Theoretical Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
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.updated2020-03-25T14:27:39Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.date.submission2020-03-25T14:27:39Z
mit.journal.volume124en_US
mit.journal.issue12en_US
mit.licensePUBLISHER_POLICY


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