SargCounted

One-decoy counts, Rusca et al., Appl. Phys. Lett. 112, 171104 (2018)

5/5 passed in 1ms

Test	What it does	Result
test_bounds_bracket	At a 1e10 block s0, s1 and v1 bracket the model's counts from the right sides, s1 at 0.79 to 0.85 of the true single-photon count and v1 at 1.73 to 1.91 times the true error count.	✅ pass
test_epsilon_terms	sarg_eps divides eps_sec by 18, Nian Eq. (13) at one common value, not by Lim's 21 or Rusca's one-decoy 19.	✅ pass
test_floors_never_meet	The vacuum floor is zero to 200 km and positive only past 219.76 km, where the single-photon floor has died, so every certified bit comes from s1.	✅ pass
test_tau_departure	Nian Eq. (6) as printed omits Rusca Eq. (A17)'s 1/tau_0 and returns a single-photon floor larger by that factor's closed-form cost, at tau_0 = 0.6476.	✅ pass
test_vacuum_ceiling	The vacuum ceiling is the max over Rusca Eqs. (A14) and (A16) at both intensities; at 50 km the signal's Eq. (A16) wins by 7.9%, 123.18 times the vacuum count it bounds.	✅ pass