Lower bound of multipartite concurrence based on sub-partite quantum systems

@article{Chen2017LowerBO,
  title={Lower bound of multipartite concurrence based on sub-partite quantum systems},
  author={Wei Chen and Xue-Na Zhu and Shao-Ming Fei and Zhu-Jun Zheng},
  journal={Quantum Information Processing},
  year={2017},
  volume={16},
  pages={1-13}
}
We study the concurrence of arbitrary dimensional multipartite quantum systems. An explicit analytical lower bound of concurrence for four-partite mixed states is obtained in terms of the concurrences of tripartite mixed states. Detailed examples are given to show that our lower bounds improve the existing lower bounds of concurrence. The approach is generalized to five-partite quantum systems. 
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Lower bound on concurrence for arbitrary-dimensional tripartite quantum states

  • Quantum Information Processing
  • 2016
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