dorsal/arxiv
View SchemaEquivalence between Entanglement and the Optimal Fidelity of Continuous Variable Teleportation
| Authors | Gerardo Adesso, Fabrizio Illuminati |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0412125 |
| URL | https://arxiv.org/abs/quant-ph/0412125 |
| DOI | 10.1103/PhysRevLett.95.150503 |
| Journal | Phys. Rev. Lett. 95, 150503 (2005) |
Abstract
We devise the optimal form of Gaussian resource states enabling continuous variable teleportation with maximal fidelity. We show that a nonclassical optimal fidelity of $N$-user teleportation networks is {\it necessary and sufficient} for $N$-party entangled Gaussian resources, yielding an estimator of multipartite entanglement. This {\it entanglement of teleportation} is equivalent to entanglement of formation in the two-user protocol, and to localizable entanglement in the multi-user one. The continuous-variable tangle, quantifying entanglement sharing in three-mode Gaussian states, is operationally linked to the optimal fidelity of a tripartite teleportation network.
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"abstract": "We devise the optimal form of Gaussian resource states enabling continuous\nvariable teleportation with maximal fidelity. We show that a nonclassical\noptimal fidelity of $N$-user teleportation networks is {\\it necessary and\nsufficient} for $N$-party entangled Gaussian resources, yielding an estimator\nof multipartite entanglement. This {\\it entanglement of teleportation} is\nequivalent to entanglement of formation in the two-user protocol, and to\nlocalizable entanglement in the multi-user one. The continuous-variable tangle,\nquantifying entanglement sharing in three-mode Gaussian states, is\noperationally linked to the optimal fidelity of a tripartite teleportation\nnetwork.",
"arxiv_id": "quant-ph/0412125",
"authors": [
"Gerardo Adesso",
"Fabrizio Illuminati"
],
"categories": [
"quant-ph",
"cond-mat.other",
"math-ph",
"math.MP",
"physics.optics"
],
"doi": "10.1103/PhysRevLett.95.150503",
"journal_ref": "Phys. Rev. Lett. 95, 150503 (2005)",
"title": "Equivalence between Entanglement and the Optimal Fidelity of Continuous Variable Teleportation",
"url": "https://arxiv.org/abs/quant-ph/0412125"
},
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