Tighter monogamy relations in multiqubit systems
Zhi‐Xiang Jin, Jun Li, Tao Li, Shao-Ming Fei · Physical Review A · 2018
Monogamy relations characterize the distributions of entanglement in multipartite systems. We investigate monogamy relations related to the concurrence $C$, the entanglement of formation $E$, negativity ${N}_{c}$, and Tsallis-$q$ entanglement ${T}_{q}$. Monogamy relations for the $\ensuremath{\alpha}\mathrm{th}$ power of entanglement have been derived, which are tighter than the existing entanglement monogamy relations for some classes of quantum states. Detailed examples are presented.