Quantum entanglement and quantum nonlocality for $N$-photon entangled states

Yan-Hua Sun, Le-Man Kuang

Quantum entanglement and quantum nonlocality of $N$-photon entangled states $|{\psi }_{Nm}>={\mathcal{N}}_m[\cos \gamma |N-m{>}_1|m{>}_2+e^{i{\theta }_m}\sin \gamma |m{>}_1|N-m{>}_2]$ and their superposi…