Phase loss is shown as a visible signal ledger, with 100 phase-sensitive shots split into 60 coherent and 40 dephased shots. This simple split keeps the model readable, while real phase visibility is inferred from measured contrasts, timing choices, and noisy repeated trials.
Phase loss is a finite coherent/dephased ledger, not an exponential fit. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Phase loss splits coherent from dephased shots
Out of 100 phase-sensitive shots, 60 remain coherent and 40 are dephased.
60+40=100
Only the coherent fraction scales visibility
The coherent fraction is 3/5, so an ideal visible count of 50 becomes 30.