A Criterion to Identify Maximally Entangled Four-Qubit State
Xin-Wei Zha, Hai-Yang Song, Feng Feng · Communications in Theoretical Physics · 2011
Paolo Facchi, et al. [ Phys. Rev. A 77 (2008) 060304(R) ] presented a maximally multipartite entangled state (MMES). Here, we give a criterion for the identification of maximally entangled four-qubit states. Using this criterion, we not only identify some existing maximally entangled four-qubit states in the literature, but also find several new maximally entangled four-qubit states as well.