Quantum correlation of a three-particle W-class state under quantum decoherence
We investigate the quantum characteristics of a three-particle W-class state and reveal the relationship between quan- tum discord and quantum entanglement under decoherence. We can also identify the state for which discord takes a maximal value for a given decoherence factor, and present a strong b...
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| Veröffentlicht in: | Chinese physics B 2013-10, Vol.22 (10), p.119-124 |
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| container_title | Chinese physics B |
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| creator | 许鹏 王栋 叶柳 |
| description | We investigate the quantum characteristics of a three-particle W-class state and reveal the relationship between quan- tum discord and quantum entanglement under decoherence. We can also identify the state for which discord takes a maximal value for a given decoherence factor, and present a strong bound on quantum entanglement-quantum discord. In contrast, a striking result will be obtained that the quantum discord is not always stronger than the entanglement of formation in the case of decoherence. Furthermore, we also theoretically study the variation trend of the monogamy of quantum correlations for the three-particle W-class state under the phase flip channel, and find that the three-particle W-class state could transform from polygamous into monogamous, owing to the decoherence. |
| doi_str_mv | 10.1088/1674-1056/22/10/100306 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1674-1056 |
| ispartof | Chinese physics B, 2013-10, Vol.22 (10), p.119-124 |
| issn | 1674-1056 2058-3834 1741-4199 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1762076096 |
| source | IOP Publishing Journals |
| subjects | Channels Correlation Entanglement Formations Phase transformations Quantum mechanics Transforms Trends 一夫一妻制 和谐 粒子 量子关联 量子特性 量子相关性 量子纠缠 量子退相干 |
| title | Quantum correlation of a three-particle W-class state under quantum decoherence |
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