Table 1 A summary of the influences of imperfect FRMs on the extractable randomness
From: Effect of external magnetic fields on practical quantum random number generator
The rotation angle deviations of two FRMs | Conditional min-entropy | Security of the QRNG | Solution |
|---|---|---|---|
Both unchanged | Not overestimated | Not affected | None |
Only one changed | Overestimated | Affected | Details in Sect. 3.2. |
Both unchanged | Overestimated | Affected | |
Greater the changed | Greater the amount of overestimation | More affected |