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arXiv · 2112.15410

Tighter monogamy and polygamy relations of quantum entanglement in multi-qubit systems

Wen-Wen Liu·Zi-Feng Yang·Shao-Ming Fei
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Abstract

We investigate the monogamy relations related to the concurrence, the entanglement of formation, convex-roof extended negativity, Tsallis-q entanglement and R'enyi-{\alpha} entanglement, the polygamy relations related to the entanglement of formation, Tsallis-q entanglement and R'enyi-{\alpha} entanglement. Monogamy and polygamy inequalities are obtained for arbitrary multipartite qubit systems, which are proved to be tighter than the existing ones. Detailed examples are presented.

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Wen-Wen Liu, Zi-Feng Yang, Shao-Ming Fei. 2021-12-31. Tighter monogamy and polygamy relations of quantum entanglement in multi-qubit systems. https://doi.org/10.1007/s10773-021-04967-x

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