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We develop monogamy relations of multiqubit quantum entanglement in terms of the concurrence, entanglement of formation, convex-roof extended negativity and Tsallis-q entanglement. These monogamy inequalities are proved to be tighter than the existing ones. The corresponding examples are also presented. [ABSTRACT FROM AUTHOR]

In this paper, we study the one-way local operations and classical communication (LOCC) problem. In $$\mathbb {C}^d\otimes \mathbb {C}^d$$ with $$d\ge 4$$ , we construct a set of $$3\lceil \sqrt{d}\rceil -1$$ one-way LOCC indistinguishable maximally entangled states which are generalized Bell states. Moreover, we show that there are four maximally entangled states which cannot be perfectly distinguished by one-way LOCC measurements for any dimension $$d\ge 4$$ . [ABSTRACT FROM AUTHOR]

In this paper, we give a method for the local unitary equivalent problem which is more efficient than that was proposed by Bin Liu et al []. [ABSTRACT FROM AUTHOR]