FINITE-KEY ANALYSIS FOR QUANTUM KEY DISTRIBUTION WITH DECOY STATES
We analyze the security of finite-resource quantum key distribution with decoy states, and present the security bound for the practical implementations by introducing the deviations of the probability of sending a k-photon pulse and the error rate of the quantum state. The bound is simulated under reasonable values of the observed parameters. Compared with the previous works, the security bound is more stringent.
quantum key distribution decoy states finite key