Greenberger-Horne-Zeilinger States: Their Identifications and Robust Violations

Xing-Yan Fan, Jie Zhou, Hui-Xian Meng +3

The $N$-qubit Greenberger-Horne-Zeilinger (GHZ) states are the maximally entangled states of $N$ qubits, which have had many important applications in quantum information processin…