Quantum correlation of a three-particle W-class state under quantum decoherence
Quantum correlation of a three-particle W-class state under quantum decoherence
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量子退相干下三粒子W级态的量子关联
DOI：
10.1088/1674-1056/22/10/100306
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发表时间：
2013-10
影响因子：
1.7
通讯作者：
Liu Ye
中科院分区：
文献类型：
--
作者：
Peng Xu;Dong Wang;Liu Ye
We investigate the quantum characteristics of a three-particle W-class state and reveal the relationship between quantum 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.
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