Characterization of entanglement of more than two qubits with Bell inequalities and global entanglement
Characterization of entanglement of more than two qubits with Bell inequalities and global entanglement
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DOI：
10.1103/physreva.71.012305
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发表时间：
2004-06
影响因子：
2.9
通讯作者：
Jochen Endrejat;Helmut Büttner
中科院分区：
文献类型：
--
作者：
Jochen Endrejat;Helmut Büttner
结果表明，3-和4-量子比特态的纠缠结构可以用Mermin-Klyshko型优化算子来表征。可以区分纯2量子比特纠缠和更高的纠缠。与全球纠缠措施的比较。
It is shown that the entanglement-structure of 3- and 4-qubit states can be characterized by optimized operators of the Mermin-Klyshko type. It is possible to discriminate between pure 2-qubit entanglements and higher entanglements. A comparison with a global entanglement measure is made.