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arXiv:2212.07806 · Quantum Information Processing

Multipartite concurrence of W-class states based on sub-partite quantum systems

Wei Chen, Yanmin Yang, Shao-Ming Fei, Zhu‐Jun Zheng, Yan-Ling Wang

Published Sep 8, 2023• 0 citations
arXivHTMLPDF
DOI
10.1007/s11128-023-04090-2

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We propose two classes of the generalized concurrence vectors of the multipartite systems consisting of qubits. Making use of them, we are able to, respectively, describe and quantify GHZ-class and W-class entanglement both in total and between arbitrary two partite in the multipartite system consisting of qubits. In the case of pure state of three qubits that one partite is separable, it is shown to exactly back to the usual Wootters' concurrence after introduce a whole concurrence vector. In principle, our method is applicable to any NNN-partite systems consisting of NNN qubits.
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