Superbroadcasting of mixed states

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dc.creatorD'Ariano, Giacomo Mauro
dc.creatorMacchiavello, Chiara
dc.creatorPerinotti, Paolo
dc.date2005-06-29
dc.date.accessioned2026-07-07T07:52:56Z
dc.date.available2026-07-07T07:52:56Z
dc.descriptionWe derive the optimal universal broadcasting for mixed states of qubits. We show that the nobroadcasting theorem cannot be generalized to more than a single input copy. Moreover, for four or more input copies it is even possible to purify the input states while broadcasting. We name such purifying broadcasting superbroadcasting.
dc.description4 pages, 4 figures, to appear on Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/quant-ph/0506251
dc.identifierhttp://arxiv.org/abs/quant-ph/0506251
dc.identifierPhys. Rev. Lett. 95, 060503 (2005)
dc.identifierdoi:10.1103/PhysRevLett.95.060503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126063
dc.subjectQuantum Physics
dc.titleSuperbroadcasting of mixed states
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