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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.

Aug 31, 2012
Sep 10, 2012
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