dorsal/arxiv
View SchemaDetecting genuine multipartite continuous-variable entanglement
| Authors | Peter van Loock, Akira Furusawa |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0212052 |
| URL | https://arxiv.org/abs/quant-ph/0212052 |
| DOI | 10.1103/PhysRevA.67.052315 |
Abstract
We derive necessary conditions in terms of the variances of position and momentum linear combinations for all kinds of separability of a multi-party multi-mode continuous-variable state. Their violations can be sufficient for genuine multipartite entanglement, provided the combinations contain both conjugate variables of all modes. Hence a complete state determination, for example by detecting the entire correlation matrix of a Gaussian state, is not needed.
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"abstract": "We derive necessary conditions in terms of the variances of position and\nmomentum linear combinations for all kinds of separability of a multi-party\nmulti-mode continuous-variable state. Their violations can be sufficient for\ngenuine multipartite entanglement, provided the combinations contain both\nconjugate variables of all modes. Hence a complete state determination, for\nexample by detecting the entire correlation matrix of a Gaussian state, is not\nneeded.",
"arxiv_id": "quant-ph/0212052",
"authors": [
"Peter van Loock",
"Akira Furusawa"
],
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"quant-ph"
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"doi": "10.1103/PhysRevA.67.052315",
"title": "Detecting genuine multipartite continuous-variable entanglement",
"url": "https://arxiv.org/abs/quant-ph/0212052"
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