This is because for ideal state preparation, |++⟩AiBi and |−−⟩AiBi correspond to the cases of even-photon, which are expected to cause few clicks

For both left, right clicks, we deﬁne that a phase error corresponds to a measurement result o f |++⟩AiBi or |−−⟩AiBi

1 Pith paper cite this work. Polarity classification is still indexing.

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quant-ph · 2025-07-15 · conditional · novelty 8.0

A finite-correlation-secure QKD protocol generates key under arbitrary finite-range source correlations using only a known vacuum probability bound.

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Side-channel-secure quantum key distribution with correlated sources quant-ph · 2025-07-15 · conditional · none · ref 6
A finite-correlation-secure QKD protocol generates key under arbitrary finite-range source correlations using only a known vacuum probability bound.