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Tighter Superadditivity Relations in Multiqubit Systems

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Abstract

Superadditivity relations characterize the distributions of coherence in multipartite quantum systems. In this work, we investigate superadditivity relations related to the l1 norm of coherence \(\mathcal {C}_{l_{1}}\). Superadditivity relations for the αth power of \(\mathcal {C}_{l_{1}}\) have also been derived, which are gradually tighter for every multiqubit states.

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Acknowledgments

This work is supported by the Natural Science Foundation of China (Grant Nos. 61771294, 61602232, 11701423, 61701343) and Shandong Provincial Natural Science Foundation, China (Grant No. ZR2015FQ006).

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Authors and Affiliations

  1. College of Mathematic and Information Science, Shandong Technology and Business University, Yantai, 264005, China

    Feng Liu & Dong-Mei Gao

  2. School of Mathematical Science, Luoyang Normal University, Luoyang, 471934, China

    Xiao-Qiu Cai

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  1. Feng Liu
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  2. Dong-Mei Gao
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  3. Xiao-Qiu Cai
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Correspondence to Feng Liu.

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Liu, F., Gao, DM. & Cai, XQ. Tighter Superadditivity Relations in Multiqubit Systems. Int J Theor Phys 58, 3589–3593 (2019). https://doi.org/10.1007/s10773-019-04222-4

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  • DOI: https://doi.org/10.1007/s10773-019-04222-4

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