Measurement Budget Audit

Coherent Shots Feed Fringe

phase visibility before readout

After survival, only the shots that still share a stable phase can draw the fringe pattern. Here the exact toy count carries 60 retained shots into 45 coherent shots, then 30 visible signal counts; measured fringe visibility would still have phase noise, drift, and shot-count uncertainty.

Only coherent shots contribute to the phase-visible count. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Coherent shots feed the fringe budget

Out of 60 retained shots, 45 remain coherent.

Ncoherent=45N_{\text{coherent}}=45
Phase-visible budgetThe coherent count is checked.3/4coherent1/4dephasedvisible fringe

The visible signal is reduced before readout

The ideal visible count 40 is scaled to 30 visible counts.

Nvisible=30N_{\text{visible}}=30
Visible fringe countThe visible count is computed from coherence.3/4coherent1/4dephasedvisible fringe