dorsal/arxiv
View SchemaOptimal estimation of two-qubit pure-state entanglement
| Authors | A. Acin, R. Tarrach, G. Vidal |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9911008 |
| URL | https://arxiv.org/abs/quant-ph/9911008 |
| DOI | 10.1103/PhysRevA.61.062307 |
| Journal | Phys. Rev. A 61, 62307 (2000) |
Abstract
We present optimal measuring strategies for the estimation of the entanglement of unknown two-qubit pure states and of the degree of mixing of unknown single-qubit mixed states, of which N identical copies are available. The most general measuring strategies are considered in both situations, to conclude in the first case that a local, although collective, measurement suffices to estimate entanglement, a non-local property, optimally.
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"abstract": "We present optimal measuring strategies for the estimation of the\nentanglement of unknown two-qubit pure states and of the degree of mixing of\nunknown single-qubit mixed states, of which N identical copies are available.\nThe most general measuring strategies are considered in both situations, to\nconclude in the first case that a local, although collective, measurement\nsuffices to estimate entanglement, a non-local property, optimally.",
"arxiv_id": "quant-ph/9911008",
"authors": [
"A. Acin",
"R. Tarrach",
"G. Vidal"
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"quant-ph"
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"doi": "10.1103/PhysRevA.61.062307",
"journal_ref": "Phys. Rev. A 61, 62307 (2000)",
"title": "Optimal estimation of two-qubit pure-state entanglement",
"url": "https://arxiv.org/abs/quant-ph/9911008"
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