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Detection of Genuine Multipartite Entanglement in Multipartite Systems
Jing-Yun Zhao, Hui Zhao, Naihuan Jing and Shao-Ming Fei
We investigate genuine multipartite entanglement in general multipartite systems. Based on the norms of the correlation tensors of a multipartite state under various partitions, we present an analytical sufficient criterion for detecting the genuine four-partite entanglement. We show that our criterion can detect genuine entanglement by detailed example. The results are generalized to arbitrary multipartite systems.