B92Overlap

The optimum overlap, where Bob's discrimination crosses Eve's

4/4 passed in 0ms

Test	What it does	Result
test_ceiling_binds	No rate exceeds the beam-splitting ceiling across a sweep of signal strength, and the operating point reports the receiver's own gain and bit error.	✅ pass
test_ceiling_shape	The ceiling turns at the optimum overlap and, taken at its own optimum, rises with channel transmission.	✅ pass
test_linear_loss	The key rate is linear in channel transmission across the window that scaling is asymptotic in, and departs from it once the gate saturates.	✅ pass
test_optimum	The optimum overlap is interior and sits where Bob's conclusive rate crosses the share of rounds Eve's split light leaves opaque.	✅ pass