Related papers: General monogamy relations of the $S^{t}$ and $T^{t}_q$-entropy entanglement measures based on dual entropy

General monogamy relations of the $S^{t}$ and $T^{t}_q$-entropy entanglement measures based on dual entropy

URL: http://arxiv.org/abs/2407.13350v1
Date: Thu, 18 Jul 2024 09:49:38 GMT
Title: General monogamy relations of the $S^{t}$ and $T^{t}_q$-entropy entanglement measures based on dual entropy
Authors: Zhong-Xi Shen, Kang-Kang Yang, Zhi-Xiang Jin, Zhi-Xi Wang, Shao-Ming Fei,
Abstract summary: We show that newly derived monogamy inequalities are tighter than the existing ones. Based on these general monogamy relations, we construct the set of multipartite entanglement indicators for $N$-qubit states.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Monogamy of entanglement is the fundamental property of quantum systems. By using two new entanglement measures based on dual entropy, the $S^{t}$-entropy entanglement and $T^{t}_q$-entropy entanglement measures, we present the general monogamy relations in multi-qubit quantum systems. We show that these newly derived monogamy inequalities are tighter than the existing ones. Based on these general monogamy relations, we construct the set of multipartite entanglement indicators for $N$-qubit states, which are shown to work well even for the cases that the usual concurrence-based indicators do not work. Detailed examples are presented to illustrate our results.

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