A genuine maximally seven-qubit entangled state
Xin-Wei Zha, Haiyang Song, Jianxia Qi, Dong Wang, Qian Lan · arXiv (Cornell University) · 2011
Contrary to A.Borras et al.'s [1] conjecture, a genuine maximally seven-qubit entangled state is presented. We find a seven-qubit state whose marginal density matrices for subsystems of 1,2- qubits are all completely mixed and for subsystems of 3-qubits is almost completely mixed.