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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5662
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dc.contributor.authorShukla, Chitra-
dc.contributor.authorPathak, A.-
dc.contributor.authorSrikanth, R.-
dc.date.accessioned2013-07-03T11:41:27Z-
dc.date.available2013-07-03T11:41:27Z-
dc.date.issued2012-12-
dc.identifier.citationInternational Journal of Quantum Information, 2012, Vol. 10, p1241009en
dc.identifier.issn0219-7499-
dc.identifier.issn1793-6918 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/5662-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractIt is shown that maximally efficient protocols for secure direct quantum communications can be constructed using any arbitrary orthogonal basis. This establishes that no set of quantum states (e.g. GHZ states, W states, Brown states or Cluster states) has an advantage over the others, barring the relative difficulty in physical implementation. The work provides a wide choice of states for experimental realization of direct secure quantum communication protocols. We have also shown that this protocol can be generalized to a completely orthogonal-state-based protocol of Goldenberg–Vaidman (GV) type. The security of these protocols essentially arises from duality and monogamy of entanglement. This stands in contrast to protocols that employ nonorthogonal states, like Bennett–Brassard 1984 (BB84), where the security essentially comes from noncommutativity in the observable algebra.en
dc.language.isoenen
dc.publisherWorld Scientific Publishingen
dc.relation.urihttp://arxiv.org/abs/1210.2583en
dc.relation.urihttp://dx.doi.org/10.1142/S0219749912410092en
dc.rights2012 World Scientific Publishing Companyen
dc.subjectQKDen
dc.subjectQSDCen
dc.subjectDSQCen
dc.titleBeyond the Goldenberg-Vaidman protocol : Secure and efficient quantum communication using arbitrary, orthogonal, multi-particle quantum statesen
dc.typeArticleen
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