Generalized monogamy inequalities and upper bounds of negativity for multiqubit systems
Yanmin Yang, Wei Chen, Gang Li, Zhu‐Jun Zheng · Physical Review A · 2018
In this paper, we present some generalized monogamy inequalities and upper bounds of negativity based on convex-roof extended negativity (CREN) and CREN of assistance (CRENOA). These monogamy relations are satisfied by the negativity of $N$-qubit quantum systems $AB{C}_{1}\ensuremath{\cdots}{C}_{N\ensuremath{-}2}$, under the partitions $AB|{C}_{1}\ensuremath{\cdots}{C}_{N\ensuremath{-}2}$ and $AB{C}_{1}|{C}_{2}\ensuremath{\cdots}{C}_{N\ensuremath{-}2}$. Furthermore, the $W$-class states are used to test these generalized monogamy inequalities.