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MiS Preprint Repository

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MiS Preprint
17/2019

Tighter constraints of multiqubit entanglement

Long-Mei Yang, Bin Chen, Shao-Ming Fei and Zhi-Xi Wang

Abstract

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 R\'{e}nyi-$\alpha$ entanglement, respectively. We show that these inequalities are tighter than the existing ones for some classes of quantum states.

Received:
Feb 11, 2019
Published:
Feb 14, 2019

Related publications

inJournal
2019 Repository Open Access
Long-Mei Yang, Bin Chen, Shao-Ming Fei and Zhi-Xi Wang

Tighter constraints of multiqubit entanglement

In: Communications in theoretical physics, 71 (2019) 5, pp. 545-554