MAXIMAL ENTANGLED FOUR-QUBIT STATE AND ITS PREPARATION IN CAVITY QED SYSTEM
Xue Li, Lie Wu, Gen-Chang Cai, Nian-Quan Jiang · International Journal of Quantum Information · 2011
In this paper, we explore the entanglement property of the nine families of four-qubit states and prove what are the maximally entangled four-qubit states. Then, we introduce a simple scheme to prepare this kind of states in cavity QED system.