Fig. 6: The simulated secure key rate of our free-running RFI (FR) scheme and the original RFI scheme (OR) with different finite lengths (Nt) and misalignment variation rate (ω).
From: Free-running long-distance reference-frame-independent quantum key distribution
Solid lines show the result of our scheme, while the dash lines with dots show the result of the original scheme. a–c show the simulated secure key rate when ω equals to 0, 6.9 × 10−3 rad/s and 3.3 × 10−2 rad/s, respectively. In b and c, the original RFI scheme couldn't generate secure key when Nt ≥ 1011. In the simulation, the dataset size m and \({\rho }^{\prime}\) are optimized.
