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篇目详细内容 |
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【篇名】 |
The entanglement of several graph states |
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【刊名】 |
Frontiers of Physics |
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【刊名缩写】 |
Front. Phys |
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【ISSN】 |
2095-0462 |
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【EISSN】 |
2095-0470 |
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【DOI】 |
10.1007/s11467-012-0249-9 |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2012 |
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【卷期】 |
7
卷4期 |
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【页码】 |
444-448
页,共
5
页 |
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【作者】 |
Xiao-Yu Chen (陈;
小;
余;
);
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【关键词】 |
graph state; closest separable state; multipartite entanglement |
【摘要】 |
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We exactly evaluate the entanglement of a six vertex and a nine vertex graph states which correspond to non “two-colorable” graphs. The upper bound of entanglement for five vertex ring graph state is improved to 2.9275, less than the upper bound determined by local operations and classical communication. An upper bound of entanglement is proposed based on the definition of graph state. |
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