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arXiv:1409.1022 · Physical Review A

Entanglement monogamy relations of qubit systems

Xue‐Na Zhu, Shao-Ming Fei

Published Aug 28, 2014• 138 citations
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Abstract

We investigate the monogamy relations related to the concurrence and the entanglement of formation. General monogamy inequalities given by the $\ensuremath{\alpha}\text{th}$ power of concurrence and entanglement of formation are presented for $N$-qubit states. The monogamy relation for entanglement of assistance is also established. Based on these general monogamy relations, the residual entanglement of concurrence and entanglement of formation are studied. Some relations among the residual entanglement, entanglement of assistance, and three tangle are also presented.

DOI
10.1103/physreva.90.024304

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