Multipartite entanglement inequalities via spin vector geometry.
Multipartite entanglement inequalities via spin vector geometry.
复制标题
通过自旋向量几何的多部分纠缠不等式。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
C. Simon
中科院分区：
文献类型：
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作者：
G. Durkin;C. Simon
我们引入了由自旋矢量几何导出的多部纠缠不等式。该准则是由各个子系统的自旋之间的交叉积和点积迭代构造的，每个子系统可以有任意的维数。对于量子位系综，我们的不等式的最大违逆大于Mermin-Klyshko - Bell不等式的最大违逆，并且最大违逆态不同于greenberger - horn - zeilinger态。我们的不等式被某些束缚纠缠态所违反，而这些纠缠态还没有发现贝尔型违反。
We introduce inequalities for multipartite entanglement, derived from the geometry of spin vectors. The criteria are constructed iteratively from cross and dot products between the spins of individual subsystems, each of which may have arbitrary dimension. For qubit ensembles the maximum violation for our inequalities is larger than that for the Mermin-Klyshko Bell inequalities, and the maximally violating states are different from Greenberger-Horne-Zeilinger states. Our inequalities are violated by certain bound entangled states for which no Bell-type violation has yet been found.