dorsal/arxiv
View SchemaBipartite entanglement measure based on covariances
| Authors | Isabel Sainz Abascal, Gunnar Björk |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703249 |
| URL | https://arxiv.org/abs/quant-ph/0703249 |
| Journal | Phys. Rev. A 75, 062317 (2007) |
Abstract
We propose an entanglement measure for two qudits based on the covariances of a set of generators of the su(N) algebra. In particular, we represent this measure in terms of the mutually unbiased projectors for N prime. For pure states this measure quantify entanglement, we obtain an explicit expression which relates it to the concurrence hierarchy, specifically the I-concurrence and the 3-concurrence. For mixed states we propose a separability criterion.
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"abstract": "We propose an entanglement measure for two qudits based on the covariances of\na set of generators of the su(N) algebra. In particular, we represent this\nmeasure in terms of the mutually unbiased projectors for N prime. For pure\nstates this measure quantify entanglement, we obtain an explicit expression\nwhich relates it to the concurrence hierarchy, specifically the I-concurrence\nand the 3-concurrence. For mixed states we propose a separability criterion.",
"arxiv_id": "quant-ph/0703249",
"authors": [
"Isabel Sainz Abascal",
"Gunnar Bj\u00f6rk"
],
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"quant-ph"
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"journal_ref": "Phys. Rev. A 75, 062317 (2007)",
"title": "Bipartite entanglement measure based on covariances",
"url": "https://arxiv.org/abs/quant-ph/0703249"
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