Quantum dialogue using non-maximally entangled states based on entanglement swapping
Yan Xia, Jie Song, He‐Shan Song · Physica Scripta · 2007
We present a secure quantum dialogue protocol using non-maximally entangled two-particle states via entanglement swapping at first, and then discuss the requirements for a real quantum dialogue. Within the present version two authorized users can exchange their faithful secret messages securely and simultaneously based on the method of entanglement purification.