METHOD AND APPARATUS FOR QUANTUM KEY DISTRIBUTION USING SEQUENTIAL STATE DISCRIMINATION

摘要

According to an embodiment of the present invention, a method for quantum key distribution using sequential state discrimination comprises the steps of: a first transmitting device transmitting a rate of two quantum mixed states to transmit through a public channel to a first receiving device and a second receiving device; the first receiving device receiving the quantum mixing state from the first transmitting device through a quantum channel and measuring the quantum mixing state by using a first positive operator valued measurement (POVM); and the second receiving device receiving a quantum mixed state after the measurement of the first receiving device from the first transmitting device through a quantum channel, and measuring the quantum mixed state after the measurement of the first receiving device by using a second POVM.;COPYRIGHT KIPO 2019