dorsal/arxiv
View SchemaNonlinear entanglement witnesses, covariance matrices and the geometry of separable states
| Authors | Otfried Gühne, Norbert Lütkenhaus |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0612108 |
| URL | https://arxiv.org/abs/quant-ph/0612108 |
| DOI | 10.1088/1742-6596/67/1/012004 |
| Journal | J. Phys.: Conf. Ser. 67, 012004 (2007) |
Abstract
Entanglement witnesses provide a standard tool for the analysis of entanglement in experiments. We investigate possible nonlinear entanglement witnesses from several perspectives. First, we demonstrate that they can be used to show that the set of separable states has no facets. Second, we give a new derivation of nonlinear witnesses based on covariance matrices. Finally, we investigate extensions to the multipartite case.
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"abstract": "Entanglement witnesses provide a standard tool for the analysis of\nentanglement in experiments. We investigate possible nonlinear entanglement\nwitnesses from several perspectives. First, we demonstrate that they can be\nused to show that the set of separable states has no facets. Second, we give a\nnew derivation of nonlinear witnesses based on covariance matrices. Finally, we\ninvestigate extensions to the multipartite case.",
"arxiv_id": "quant-ph/0612108",
"authors": [
"Otfried G\u00fchne",
"Norbert L\u00fctkenhaus"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1742-6596/67/1/012004",
"journal_ref": "J. Phys.: Conf. Ser. 67, 012004 (2007)",
"title": "Nonlinear entanglement witnesses, covariance matrices and the geometry of separable states",
"url": "https://arxiv.org/abs/quant-ph/0612108"
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