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B92Strong ​

Strong-reference B92 with the phase error derived, against Phys. Rev. A 80, 032302 (2009)

7/7 passed in 777ms

TestWhat it doesResult
test_linear_transmissionThe rate is proportional to channel transmission over the span the paper claims it for, steepening only near the crossing.✅ pass
test_monitor_formThe five monitored rates are Eq. (17) term for term, the windowed three sifted by the Poisson share.✅ pass
test_phase_derivedThe phase error is derived rather than supplied: the largest value the implicit Eq. (15) admits, rising with loss and with noise.✅ pass
test_published_reachThe three curves of Fig. 2 reach zero at 55, 100 and 122 km, reproduced to better than a third of a kilometre with nothing fitted.✅ pass
test_reach_saturatesRaising the reference intensity alone stops buying distance, the paper's own 124 km being a maximum over the signal strength and the window too.✅ pass
test_under_capacityThis variant reaches at most seven per cent of the repeaterless capacity of the same span, which b92_ceiling beats.✅ pass
test_window_formD1's window is centred on the mean photon number of the arriving reference, 3.2 standard deviations each side, holding that many sigma of Poisson weight.✅ pass