dorsal/arxiv
View SchemaLewenstein-Sanpera Decomposition for Iso-concurrence Decomposable States
| Authors | S. J. Akhtarshenas, M. A. Jafarizadeh |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0208142 |
| URL | https://arxiv.org/abs/quant-ph/0208142 |
Abstract
We obtain Lewenstein-Sanpera decomposition of iso-concurrence decomposable states of $2\otimes 2$ quantum systems. It is shown that in these systems average concurrence of the decomposition is equal to the concurrence of the state and also it is equal to the amount of violation of positive partial transpose criterion. It is also shown that the product states introduced by Wootters in [W. K. Wootters, Phys. Rev. Lett. {\bf 80} 2245 (1998)] form the best separable approximation ensemble for these states.
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"abstract": "We obtain Lewenstein-Sanpera decomposition of iso-concurrence decomposable\nstates of $2\\otimes 2$ quantum systems. It is shown that in these systems\naverage concurrence of the decomposition is equal to the concurrence of the\nstate and also it is equal to the amount of violation of positive partial\ntranspose criterion. It is also shown that the product states introduced by\nWootters in [W. K. Wootters, Phys. Rev. Lett. {\\bf 80} 2245 (1998)] form the\nbest separable approximation ensemble for these states.",
"arxiv_id": "quant-ph/0208142",
"authors": [
"S. J. Akhtarshenas",
"M. A. Jafarizadeh"
],
"categories": [
"quant-ph"
],
"title": "Lewenstein-Sanpera Decomposition for Iso-concurrence Decomposable States",
"url": "https://arxiv.org/abs/quant-ph/0208142"
},
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