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dc.contributor.authorOlsen, MK
dc.contributor.authorCavalcanti, EG
dc.date.accessioned2019-02-15T05:03:38Z
dc.date.available2019-02-15T05:03:38Z
dc.date.issued2016
dc.identifier.issn2469-9926
dc.identifier.doi10.1103/PhysRevA.94.012331
dc.identifier.urihttp://hdl.handle.net/10072/100326
dc.description.abstractThe fully symmetric Gaussian tripartite entangled pure states will not exhibit two-mode Einstein-Podolsky-Rosen (EPR) steering. This means that any two participants cannot share quantum secrets using the security of one-sided device independent quantum key distribution (1SDI-QKD) without involving the third. They are restricted at most to standard quantum key distribution, which is less secure. Here we demonstrate an asymmetric tripartite system that can exhibit bipartite EPR steering, so that two of the participants can use 1SDI-QKD without involving the other. This is possible because the promiscuity relations of continuous-variable tripartite entanglement are different from those of discrete-variable systems. We analyze these properties for two different systems, showing that the asymmetric system exhibits practical properties not found in the symmetric one.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofpagefrom012331-1
dc.relation.ispartofpageto012331-6
dc.relation.ispartofjournalPhysical Review A
dc.relation.ispartofvolume94
dc.subject.fieldofresearchQuantum optics and quantum optomechanics
dc.subject.fieldofresearchQuantum information, computation and communication
dc.subject.fieldofresearchcode510804
dc.subject.fieldofresearchcode510803
dc.titleVersatility of continuous-variable asymmetric tripartite entanglement allows Alice and Clare to keep secrets from Bob
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2016 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorCavalcanti, Eric G.


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