Fig. 2: Probability distribution of the fluctuating channel transmission T, including attenuation of receiver optics.
From: Free-space continuous-variable quantum key distribution under high background noise
The bin width (ΔT) is 0.1%. a The Tmean measured on the evening of 15 June 2023 was 45.4%. b The Tmean measured at noon on 16 June 2023 was 44.5%.
