Tighter Constraints of Multiqubit Entanglement

@article{Yang2019TighterCO,
  title={Tighter Constraints of Multiqubit Entanglement},
  author={Long-Mei Yang and Bin Chen and S. M. Fei and Zhi-Xi Wang},
  journal={Communications in Theoretical Physics},
  year={2019}
}
Monogamy and polygamy relations characterize the distributions of entanglement in multipartite systems. We provide classes of monogamy and polygamy inequalities of multiqubit entanglement in terms of concurrence, entanglement of formation, negativity, Tsallis-$q$ entanglement and Renyi-$\alpha$ entanglement, respectively. We show that these inequalities are tighter than the existing ones for some classes of quantum states. 

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