Tighter Constraints of Multiqubit Entanglement

Long-Mei Yang,Bin Chen,Shao-Ming Fei,Zhi-Xi Wang

Fig.2 (Color online) The $y$ axis is the lower bound of the EoF $E^\beta_{A|BC}$. The red (green resp. blue) line represents the lower bound from our result for $k=0.5$ ($k=0.7$ resp. $k=0.9$), and the yellow line represents the lower bound from the result in Ref.[22].