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MiS Preprint
70/2018
Improved monogamy relations with concurrence of assistance and negativity of assistance for multiqubit W-class states
Zhi-Xiang Jin, Shao-Ming Fei and Xianqing Li-Jost
Abstract
Monogamy relations characterize the distributions of entanglement in multipartite systems. We investigate the monogamy relations satisfied by the concurrence of assistance and the negativity of assistance for multiqubit generalized $W$-class states. Analytical monogamy inequalities are presented for both concurrence of assistance and negativity of assistance, which are shown to be tighter than the existing ones. Detailed examples have been presented.
