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We have decided to discontinue the publication of preprints on our preprint server as of 1 March 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV ( that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.

MiS Preprint

Lower Bound of Multipartite Concurrence Based on Sub-quantum State Decomposition

Xue-Na Zhu, Ming-Jing Zhao and Shao-Ming Fei


We study the entanglement of tripartite quantum states and provide analytical lower bounds of concurrence in terms of the concurrence of substates. The lower bound may improve all of the existing lower bounds of concurrence. The approach is generalized to arbitrary dimensional multipartite systems.

03.67.Mn, 03.65.Ud

Related publications

2012 Repository Open Access
Xue-Na Zhu, Ming-Jing Zhao and Shao-Ming Fei

Lower bound of multipartite concurrence based on sub-quantum state decomposition

In: Physical review / A, 86 (2012) 2, p. 022307