Quantum states representing perfectly secure bits are always distillable

dc.creatorHorodecki, Pawel
dc.creatorAugusiak, Remigiusz
dc.date2006-02-21
dc.date2007-11-06
dc.date.accessioned2026-07-07T08:40:53Z
dc.date.available2026-07-07T08:40:53Z
dc.descriptionIt is proven that recently introduced states with perfectly secure bits of cryptographic key (private states representing secure bit) [K. Horodecki et al., Phys. Rev. Lett. 94, 160502 (2005)] as well as its multipartite and higher dimension generalizations always represent distillable entanglement. The corresponding lower bounds on distillable entanglement are provided. We also present a simple alternative proof that for any bipartite quantum state entanglement cost is an upper bound on distillable cryptographic key in bipartite scenario.
dc.descriptionRevTeX, 5 pages, published version
dc.identifierhttps://arxiv.org/abs/quant-ph/0602176
dc.identifierhttp://arxiv.org/abs/quant-ph/0602176
dc.identifierPhysical Review A 74, 010302(R) (2006)
dc.identifierdoi:10.1103/PhysRevA.74.010302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141504
dc.subjectQuantum Physics
dc.titleQuantum states representing perfectly secure bits are always distillable
dc.typetext

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