ExpRubenokRelay
Tier B: Rubenok et al. 2013, MDI-QKD measured over deployed fibre
8/8 passed in 8ms
| Test | What it does | Result |
|---|---|---|
test_mdi_bell | Reading Q_vv as a projection onto psi- alone gives p_d = 1.884e-5, 3.0% from their companion paper's 1.83e-5, against 27% for Ma and Razavi's four-pattern reading. | ✅ pass |
test_mdi_decoy | Xu, Curty, Qi and Lo's single-photon-pair bound on their 3x3 diagonal grid sits within 2.1% of the halved forward model at all four setups, above it on the error rate, and ignores the two unpublished cells. | ✅ pass |
test_mdi_deficit | Declared miss: the rectilinear QBER is exact at fitted setup 2 but 0.04429 against a measured 0.053 at 18.2 dB, a channel background the Ma-Razavi model has no term for. | ✅ pass |
test_mdi_efficiency | Each gain inverted for detector efficiency alone gives a 10.2% spread straddling their companion paper's 0.145. | ✅ pass |
test_mdi_gains | All sixteen measured gains across four setups, two bases and two intensities sit within 0.876x to 1.051x of the model, nothing fitted. | ✅ pass |
test_mdi_qber | One misalignment fitted to setup 2's rectilinear QBER puts all four diagonal QBERs within 0.8 points of measurement, near Ma and Razavi's | ✅ pass |
test_mdi_rates | Rebuilt from their grid the key rates are 2.94x to 7.36x their published figures, bounded not reproduced, their overlaps being "insufficient to securely distribute key". | ✅ pass |
test_mdi_visibility | The Poissonian HOM ceiling is exactly their "maximum value of 50%", their | ✅ pass |