dorsal/arxiv
View SchemaPerfect Test of Entanglement for Two-level Systems
| Authors | Sixia Yu, Jian-Wei Pan, Zeng-Bing Chen, Yong-De Zhang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0301030 |
| URL | https://arxiv.org/abs/quant-ph/0301030 |
| DOI | 10.1103/PhysRevLett.91.217903 |
| Journal | PRL 91, 217903 (2003) |
Abstract
A 3-setting Bell-type inequality enforced by the indeterminacy relation of complementary local observables is proposed as an experimental test of the 2-qubit entanglement. The proposed inequality has an advantage of being a sufficient and necessary criterion of the separability. Therefore any entangled 2-qubit state cannot escape the detection by this kind of tests. It turns out that the orientation of the local testing observables plays a crucial role in our perfect detection of the entanglement.
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"abstract": "A 3-setting Bell-type inequality enforced by the indeterminacy relation of\ncomplementary local observables is proposed as an experimental test of the\n2-qubit entanglement. The proposed inequality has an advantage of being a\nsufficient and necessary criterion of the separability. Therefore any entangled\n2-qubit state cannot escape the detection by this kind of tests. It turns out\nthat the orientation of the local testing observables plays a crucial role in\nour perfect detection of the entanglement.",
"arxiv_id": "quant-ph/0301030",
"authors": [
"Sixia Yu",
"Jian-Wei Pan",
"Zeng-Bing Chen",
"Yong-De Zhang"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.91.217903",
"journal_ref": "PRL 91, 217903 (2003)",
"title": "Perfect Test of Entanglement for Two-level Systems",
"url": "https://arxiv.org/abs/quant-ph/0301030"
},
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