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Tighter monogamy relations of quantum entanglement for multiqubit W-class states

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Abstract

Monogamy relations characterize the distributions of entanglement in multipartite systems. We investigate monogamy relations for multiqubit generalized W-class states. We present new analytical monogamy inequalities for the concurrence of assistance, which are shown to be tighter than the existing ones. Furthermore, analytical monogamy inequalities are obtained for the negativity of assistance.

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Acknowledgements

This work is supported by the NSF of China under Grant No. 11675113.

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Authors and Affiliations

  1. School of Mathematical Sciences, Capital Normal University, Beijing, 100048, China

    Zhi-Xiang Jin & Shao-Ming Fei

  2. Max-Planck-Institute for Mathematics in the Sciences, 04103, Leipzig, Germany

    Shao-Ming Fei

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  1. Zhi-Xiang Jin
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  2. Shao-Ming Fei
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Correspondence to Zhi-Xiang Jin.

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Jin, ZX., Fei, SM. Tighter monogamy relations of quantum entanglement for multiqubit W-class states. Quantum Inf Process 17, 2 (2018). https://doi.org/10.1007/s11128-017-1769-6

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  • DOI: https://doi.org/10.1007/s11128-017-1769-6

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