| Spin Squeezing and Entanglement of Many-Particle Spin-Half States |
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| 作者姓名： | 严冬 王晓光 吴令安 |
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| 作者单位： | [1]InstituteofAppliedPhysics,ChangchunUniversity,Changchun130022 [2]ZhejiangInstituteofModernPhysics,DepartmentofPhysics,ZhejiangUniversity,HangZhou310027 [3]LabofOpticalPhysics,InstituteofPhysics,ChineseAcademyofSciences,Beijing100080 |
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| 摘 要： | In many-particle spin-half systems with exchange symmetry, we find that the spin squeezing is related to two types of entanglement, the bipartite and the pairwise entanglement. A quantitative relationship is revealed for the spin squeezing parameter, the tangle, and the concurrence. We find that a class of states is spin squeezed if the pairwise entanglement is stronger than the bipartite entanglement.
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| 关 键 词： | 自旋压实 双向缠结 对称交换 原子物理学 |
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