dorsal/arxiv
View SchemaPurification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
| Authors | Charles H. Bennett, Gilles Brassard, Sandu Popescu, Benjamin Schumacher, John A. Smolin, William K. Wootters |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9511027 |
| URL | https://arxiv.org/abs/quant-ph/9511027 |
| DOI | 10.1103/PhysRevLett.76.722 |
| Journal | Phys.Rev.Lett.76:722-725,1996 |
Abstract
Two 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 ($\ket{\Psi^-}$) distillable from mixed states $M$, showing $D(M)>0$ if $\bra{\Psi^-}M\ket{\Psi^-}>\half$.
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"abstract": "Two separated observers, by applying local operations to a supply of\nnot-too-impure entangled states ({\\em e.g.} singlets shared through a noisy\nchannel), can prepare a smaller number of entangled pairs of arbitrarily high\npurity ({\\em e.g.} near-perfect singlets). These can then be used to faithfully\nteleport unknown quantum states from one observer to the other, thereby\nachieving faithful transfrom one observer to the other, thereby achieving\nfaithful transmission of quantum information through a noisy channel. We give\nupper and lower bounds on the yield $D(M)$ of pure singlets ($\\ket{\\Psi^-}$)\ndistillable from mixed states $M$, showing $D(M)\u003e0$ if\n$\\bra{\\Psi^-}M\\ket{\\Psi^-}\u003e\\half$.",
"arxiv_id": "quant-ph/9511027",
"authors": [
"Charles H. Bennett",
"Gilles Brassard",
"Sandu Popescu",
"Benjamin Schumacher",
"John A. Smolin",
"William K. Wootters"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.76.722",
"journal_ref": "Phys.Rev.Lett.76:722-725,1996",
"title": "Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels",
"url": "https://arxiv.org/abs/quant-ph/9511027"
},
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