Tighter constraints of multiqubit entanglement in terms of Rényi-α entropy

Meng-Li Guo, Bo Li, Zhi-Xi Wang, and Shao-Ming Fei

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Submission date: 08. May. 2020
Pages: 12
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Abstract:
Quantum entanglement plays essential roles in quantum information processing. The monogamy and polygamy relations characterize the entanglement distributions in the multipartite systems. We present a class of monogamy inequalities related to the μth power of the entanglement measure based on Rényi-α entropy, as well as polygamy relations in terms of the μth powered of Rényi-α entanglement of assistance. These monogamy and polygamy relations are shown to be tighter than the existing ones.