Strong polygamy and monogamy relations for multipartite quantum systems

Zhi-Xiang Jin and Shao-Ming Fei

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Submission date: 02. Feb. 2020
Pages: 16
published in: Quantum information processing, 19 (2020) 2, art-no. 45 
DOI number (of the published article): 10.1007/s11128-019-2540-y
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Abstract:
Monogamy and polygamy are the most striking features of the quantum world. We investigate the monogamy and polygamy relations satisfied by all quantum correlation measures for arbitrary multipartite quantum states. By introducing residual quantum correlations, analytical polygamy inequalities are presented, which are shown to be tighter than the existing ones. Then, similar to polygamy relations, we obtain strong monogamy relations that are better than all the existing ones. Typical examples are presented for illustration.