dorsal/arxiv
View SchemaOptimal Entanglement Enhancement for Mixed States
| Authors | Adrian Kent, Noah Linden, Serge Massar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9902022 |
| URL | https://arxiv.org/abs/quant-ph/9902022 |
| DOI | 10.1103/PhysRevLett.83.2656 |
| Journal | Phys.Rev.Lett. 83 (1999) 2656-2659 |
Abstract
We consider the actions of protocols involving local quantum operations and classical communication (LQCC) on a single system consisting of two separated qubits. We give a complete description of the orbits of the space of states under LQCC and characterise the representatives with maximal entanglement of formation. We thus obtain a LQCC entanglement concentration protocol for a single given state (pure or mixed) of two qubits which is optimal in the sense that the protocol produces, with non-zero probability, a state of maximal possible entanglement of formation. This defines a new entanglement measure, the maximum extractable entanglement.
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"abstract": "We consider the actions of protocols involving local quantum operations and\nclassical communication (LQCC) on a single system consisting of two separated\nqubits. We give a complete description of the orbits of the space of states\nunder LQCC and characterise the representatives with maximal entanglement of\nformation. We thus obtain a LQCC entanglement concentration protocol for a\nsingle given state (pure or mixed) of two qubits which is optimal in the sense\nthat the protocol produces, with non-zero probability, a state of maximal\npossible entanglement of formation. This defines a new entanglement measure,\nthe maximum extractable entanglement.",
"arxiv_id": "quant-ph/9902022",
"authors": [
"Adrian Kent",
"Noah Linden",
"Serge Massar"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.83.2656",
"journal_ref": "Phys.Rev.Lett. 83 (1999) 2656-2659",
"title": "Optimal Entanglement Enhancement for Mixed States",
"url": "https://arxiv.org/abs/quant-ph/9902022"
},
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