dorsal/arxiv
View SchemaMinimal set of local measurements and classical communication for two-mode Gaussian state entanglement quantification
| Authors | Luis F. Haruna, Marcos C. de Oliveira, Gustavo Rigolin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0702081 |
| URL | https://arxiv.org/abs/quant-ph/0702081 |
| DOI | 10.1103/PhysRevLett.99.059902 |
| Journal | Phys. Rev. Lett. 98, 150501 (2007); Phys. Rev. Lett. 99, 059902 (2007) |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We develop the minimal requirements for the complete entanglement quantification of an arbitrary two-mode bipartite Gaussian state via local measurements and a classical communication channel. The minimal set of measurements is presented as a reconstruction protocol of local covariance matrices and no previous knowledge of the state is required but its Gaussian character. The protocol becomes very simple mostly when dealing with Gaussian states transformed to its standard form, since photocounting/intensity measurements define the whole set of entangled states. In addition, conditioned on some prior information, the protocol is also useful for a complete global state reconstruction.
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"abstract": "We develop the minimal requirements for the complete entanglement\nquantification of an arbitrary two-mode bipartite Gaussian state via local\nmeasurements and a classical communication channel. The minimal set of\nmeasurements is presented as a reconstruction protocol of local covariance\nmatrices and no previous knowledge of the state is required but its Gaussian\ncharacter. The protocol becomes very simple mostly when dealing with Gaussian\nstates transformed to its standard form, since photocounting/intensity\nmeasurements define the whole set of entangled states. In addition, conditioned\non some prior information, the protocol is also useful for a complete global\nstate reconstruction.",
"arxiv_id": "quant-ph/0702081",
"authors": [
"Luis F. Haruna",
"Marcos C. de Oliveira",
"Gustavo Rigolin"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.99.059902",
"journal_ref": "Phys. Rev. Lett. 98, 150501 (2007); Phys. Rev. Lett. 99, 059902\n (2007)",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Minimal set of local measurements and classical communication for two-mode Gaussian state entanglement quantification",
"url": "https://arxiv.org/abs/quant-ph/0702081"
},
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