NEW QUANTUM PRIVATE COMPARISON PROTOCOL WITHOUT ENTANGLEMENT
Yu‐Guang Yang, Juan Xia, Xin Jia, Lei Shi, Hua Zhang · International Journal of Quantum Information · 2012
After analyzing the main quantum private comparison (QPC) protocols based on the entanglement states, we propose a new QPC protocol using only polarized single photons. It will be shown that entanglement is not necessary for QPC. Most importantly, it will be pointed out that QPC protocols can be constructed by adapting the current quantum three-party secret sharing models properly.