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Monogamy relation of multi-qubit systems for squared Tsallis-\emph{q} entanglement

Quantum Physics 2016-07-12 v2

Abstract

Tsallis-qq entanglement is a bipartite entanglement measure which is the generalization of entanglement of formation for qq tending to 1. We first expand the range of qq for the analytic formula of Tsallis-\emph{q} entanglement. For 5132q5+132\frac{5-\sqrt{13}}{2} \leq \emph{q} \leq \frac{5+\sqrt{13}}{2}, we prove the monogamy relation in terms of the squared Tsallis-qq entanglement for an arbitrary multi-qubit systems. It is shown that the multipartite entanglement indicator based on squared Tsallis-qq entanglement still works well even when the indicator based on the squared concurrence loses its efficacy. We also show that the μ\mu-th power of Tsallis-\emph{q} entanglement satisfies the monogamy or polygamy inequalities for any three-qubit state.

Keywords

Cite

@article{arxiv.1604.08077,
  title  = {Monogamy relation of multi-qubit systems for squared Tsallis-\emph{q} entanglement},
  author = {Guang-Ming Yuan and Wei Song and Ming Yang and Da-Chuang Li and Jun-Long Zhao and Zhuo-Liang Cao},
  journal= {arXiv preprint arXiv:1604.08077},
  year   = {2016}
}

Comments

This paper was submitted on 27th March