| Separability Criteria for Quantum Mixed States in Terms of Trace Norm |
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| 引用本文： | 赵慧. Separability Criteria for Quantum Mixed States in Terms of Trace Norm[J]. 中国物理快报, 2006, 23(7): 1674-1675 |
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| 作者姓名： | 赵慧 |
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| 作者单位： | College of Applied Sciences, Beijing University of Technology, Beijing 100022 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No10375038, the Natural Science Foundation of Beijing under Grant No1042004, the Doctor Research Star-up Foundation of Beijing University of Technology under grant No 5200601200151, and the Science Research Foundation of Beijing University of Technology under Grant No 9700601200151. |
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| 摘 要： | A new necessary conditions for separability of mixed states in bipartite and multipartite quantum systems of arbitrary dimensions are presented. This method requires only a few local measurements. If a quantum state in a bipartite （or multipartite） system of arbitrary dimension is separable, we show that the trace norm of a constructive matrix is less than or equal to 1.
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| 关 键 词： | 分离性标准 量子混合态 轨迹标准 必要条件 |
| 收稿时间： | 2006-02-17 |
| 修稿时间： | 2006-02-17 |
Separability Criteria for Quantum Mixed States in Terms of Trace Norm |
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| ZHAO Hui. Separability Criteria for Quantum Mixed States in Terms of Trace Norm[J]. Chinese Physics Letters, 2006, 23(7): 1674-1675 |
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| Authors: | ZHAO Hui |
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