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Monogamy relations in tripartite quantum system |
Li Jiao-Jiao(李姣姣) and Wang Zhi-Xi(王志玺)† |
School of Mathematical Sciences, Capital Normal University, Beijing 100048, China |
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Abstract This paper presents monogamy relations for three-qubit quantum states by using convex-roof extended negativity, which inspires studying the difference between the three entanglement measures, concurrence, negativity and convex-roof extended negativity. It finds that the convex-roof extended negativity is a stronger entanglement measure than concurrence in multipartite higher-dimensional quantum system.
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Received: 30 January 2010
Revised: 09 March 2010
Accepted manuscript online:
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PACS:
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03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Lx
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(Quantum computation architectures and implementations)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10871227) and the Natural Science Foundation of Beijing (Grant No. 1092008). |
Cite this article:
Li Jiao-Jiao(李姣姣) and Wang Zhi-Xi(王志玺) Monogamy relations in tripartite quantum system 2010 Chin. Phys. B 19 100310
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