BlindEstimator

Loss-tolerant and GLLP phase errors, kept apart

6/6 passed in 0ms

Test	What it does	Result
test_coin	The coin imbalance is (1 - F)/(2 Y1), capped at one half.	✅ pass
test_direct	The loss-tolerant phase error agrees with measuring the two virtual states directly, which is what makes it exact rather than a bound.	✅ pass
test_divergence	Tamaki's own simulated channel gives a flaw-dependent loss-tolerant phase error of sin^2(3 delta/8), which this engine does not reproduce.	✅ pass
test_flat	The loss-tolerant phase error carries no flaw dependence, only the tilt: the flaw turns Alice's virtual frame and Bob's analyser together.	✅ pass
test_gllp	The standard phase error is the Bloch-sphere bound, in both of its equivalent closed forms.	✅ pass
test_zerobit	At zero flaw and zero tilt the phase error equals the bit error exactly.	✅ pass