Quantum entanglement underpins applications ranging from secure communications to distributed metrology and scalable quantum networks.Among these,quantum key distribution(QKD)[1]is the most mature,routinely demonstrat...Quantum entanglement underpins applications ranging from secure communications to distributed metrology and scalable quantum networks.Among these,quantum key distribution(QKD)[1]is the most mature,routinely demonstrating information-theoretic key establishment over fiber and freespace links.In prepare-and-measure protocols[2],the transmitter generates the required quantum states based on classical random numbers and randomizes the intensity and phase of the emitted light to mitigate potential source attacks.展开更多
文摘Quantum entanglement underpins applications ranging from secure communications to distributed metrology and scalable quantum networks.Among these,quantum key distribution(QKD)[1]is the most mature,routinely demonstrating information-theoretic key establishment over fiber and freespace links.In prepare-and-measure protocols[2],the transmitter generates the required quantum states based on classical random numbers and randomizes the intensity and phase of the emitted light to mitigate potential source attacks.
