General Monogamy of Tsallis-q Entropy Entanglement in Multiqubit Systems

2016 
In this paper, we study the monogamy inequality of Tsallis $q$-entropy entanglement. We first provide an analytic formula of Tsallis $q$-entropy entanglement in two-qubit systems for $\frac{5\ensuremath{-}\sqrt{13}}{2}\ensuremath{\le}q\ensuremath{\le}\frac{5+\sqrt{13}}{2}.$ The analytic formula of Tsallis $q$-entropy entanglement in $2\ensuremath{\bigotimes}d$ system is also obtained and we show that Tsallis $q$-entropy entanglement satisfies a set of hierarchical monogamy equalities. Furthermore, we prove the squared Tsallis $q$-entropy entanglement follows a general inequality in the qubit systems. Based on the monogamy relations, a set of multipartite entanglement indicators is constructed, which can detect all genuine multiqubit entangled states even in the case of $N$-tangle vanishes. Moreover, we study some examples in multipartite higher-dimensional system for the monogamy inequalities.
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