Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels

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dc.creatorBennett, Charles H.
dc.creatorBrassard, Gilles
dc.creatorPopescu, Sandu
dc.creatorSchumacher, Benjamin
dc.creatorSmolin, John A.
dc.creatorWootters, William K.
dc.date1995-11-20
dc.date1995-11-22
dc.date.accessioned2026-07-07T11:36:47Z
dc.date.available2026-07-07T11:36:47Z
dc.descriptionTwo separated observers, by applying local operations to a supply of not-too-impure entangled states ({\em e.g.} singlets shared through a noisy channel), can prepare a smaller number of entangled pairs of arbitrarily high purity ({\em e.g.} near-perfect singlets). These can then be used to faithfully teleport unknown quantum states from one observer to the other, thereby achieving faithful transfrom one observer to the other, thereby achieving faithful transmission of quantum information through a noisy channel. We give upper and lower bounds on the yield $D(M)$ of pure singlets ($\ket{Ψ^-}$) distillable from mixed states $M$, showing $D(M)>0$ if $\bra{Ψ^-}M\ket{Ψ^-}>\half$.
dc.description4 pages (revtex) plus 1 figure (postscript). See also http://vesta.physics.ucla.edu/~smolin/ . Replaced to correct interchanged $σ_x$ and $σ_z$ near top of column 2, page 2
dc.identifierhttps://arxiv.org/abs/quant-ph/9511027
dc.identifierhttp://arxiv.org/abs/quant-ph/9511027
dc.identifierPhys.Rev.Lett.76:722-725,1996
dc.identifierdoi:10.1103/PhysRevLett.76.722
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199042
dc.subjectQuantum Physics
dc.titlePurification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
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