题目：Polygamy relation of quantum correlations with equality

作者：费少明  研究员（通讯作者）

简介：We provide a generalized definition of polygamy relations for any quantum correlation measures. Instead of the usual polygamy inequality, a polygamy relation with equality is given by introducing the polygamy weight. From the polygamy relation with equality we present polygamy inequalities satisfied by the $\beta$th $(\beta>0)$ power of the quantum correlation measures. Taking concurrence of assistance as an example, we further illustrate the significance and advantages of these relations. For any quantum entanglement measures, which do not satisfy the polygamy relations, we also obtain a polygamy relation with equality by considering the one-to-group entanglements. We demonstrate that such relations for tripartite states can be generalized to multipartite systems.