RelayEstimator

The two-dimensional MDI-BB84 decoy inversion, Curty et al. (2014)

5/5 passed in 1ms

Test	What it does	Result
test_empty_test	With no certified test sample the phase bound reads one half rather than dividing by zero.	✅ pass
test_fault_ceiling	The certified single-pair error count falls with the block and stays above the true count.	✅ pass
test_model_agrees	CROSS-ENGINE. The exam's own forward model reproduces mdi_yield at one photon from each party.	✅ pass
test_pair_bound	The certified single-photon-pair count rises with the block, stays below the infinite-decoy ceiling tau_11 times Y_11, and closes on its zero-fluctuation limit as one over the square root of the block: exponent -0.5004 over four decades from 1e16. Below about 1e15 the clamp at zero and the switching maximum both bite and the exponent is not a power law.	✅ pass
test_phase_ceiling	The phase-error bound falls with the block and never sits below the single-pair error rate in the channel.	✅ pass