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arXiv · 1208.1745

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

Xue-Na Zhu·Ming-Jing Zhao·Shao-Ming Fei
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Abstract

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

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Xue-Na Zhu, Ming-Jing Zhao, Shao-Ming Fei. 2012-08-08. Lower Bound of Multipartite Concurrence Based on Sub-quantum State Decomposition. https://doi.org/10.1103/physreva.86.022307

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