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Detection of Tripartite Genuine Entanglement by Two Bipartite Entangled States
Author(s) -
Sun Yize,
Chen Lin
Publication year - 2021
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.202000432
Subject(s) - multipartite entanglement , quantum entanglement , bipartite graph , multipartite , w state , concurrence , state (computer science) , quantum mechanics , qubit , cluster state , peres–horodecki criterion , physics , squashed entanglement , mathematics , combinatorics , quantum , algorithm , graph
There are practical motivations to construct genuine tripartite entangled states based on the collective use of two bipartite entangled states. Here, the case that the states are two‐qubit Werner states is considered. The intervals of parameters of two‐qubit Werner states are revealed such that the tripartite state is genuinely entangled. Furthermore, we also investigate the lower bound of genuine multipartite entanglement concurrence for tripartite qudit states. Several examples are given to show the effectiveness of the lower bound.