Quantum key distribution with finite resources: Taking advantage of quantum noise
Quantum key distribution with finite resources: Taking advantage of quantum noise
We compare the effect of different noise scenarios on the achievable rate of an ${\ensuremath{\varepsilon}}_{}$-secure key for the BB84 and the six-state protocol. We study the situation where quantum noise is added deliberately, and investigate the remarkable benefit for the finite key rate. We compare our results to the known …