dorsal/arxiv
View SchemaMaximally entangled mixed states: Creation and concentration
| Authors | Nicholas A. Peters, Joseph B. Altepeter, David A. Branning, Evan R. Jeffrey, Tzu-Chieh Wei, Paul G. Kwiat |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0308003 |
| URL | https://arxiv.org/abs/quant-ph/0308003 |
| DOI | 10.1103/PhysRevLett.92.133601 |
| Journal | Phys. Rev. Lett. \bf{92}, 133601 (2004) |
Abstract
Using correlated photons from parametric downconversion, we extend the boundaries of experimentally accessible two-qubit Hilbert space. Specifically, we have created and characterized maximally entangled mixed states (MEMS) that lie above the Werner boundary in the linear entropy-tangle plane. In addition, we demonstrate that such states can be efficiently concentrated, simultaneously increasing both the purity and the degree of entanglement. We investigate a previously unsuspected sensitivity imbalance in common state measures, i.e., the tangle, linear entropy, and fidelity.
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"abstract": "Using correlated photons from parametric downconversion, we extend the\nboundaries of experimentally accessible two-qubit Hilbert space. Specifically,\nwe have created and characterized maximally entangled mixed states (MEMS) that\nlie above the Werner boundary in the linear entropy-tangle plane. In addition,\nwe demonstrate that such states can be efficiently concentrated, simultaneously\nincreasing both the purity and the degree of entanglement. We investigate a\npreviously unsuspected sensitivity imbalance in common state measures, i.e.,\nthe tangle, linear entropy, and fidelity.",
"arxiv_id": "quant-ph/0308003",
"authors": [
"Nicholas A. Peters",
"Joseph B. Altepeter",
"David A. Branning",
"Evan R. Jeffrey",
"Tzu-Chieh Wei",
"Paul G. Kwiat"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.133601",
"journal_ref": "Phys. Rev. Lett. \\bf{92}, 133601 (2004)",
"title": "Maximally entangled mixed states: Creation and concentration",
"url": "https://arxiv.org/abs/quant-ph/0308003"
},
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