V20·Act IV · Quantum

Interference through mediated branches

Two routes to the same endpoint drawn as beams. Insert the intermediate context and watch the counts redistribute.

The relation on screen

P_{12} \neq = P_{1} + P_{2}, visibility V = \frac{P _{m a x} - P _{m i n}}{P _{m a x} + P _{m i n}}

When no which-path record is committed, path counts do not add. Committing one restores additivity.

Symbols

$P_{12}$: count with both paths open
$V$: fringe visibility

loading interference scenario

what to look for · The gap between the mediated and direct measurement is the interference term, in records.

Consensus to physics

01a configuration can reach an outcome directly or through an intermediate context
02the branch structures differ
03comparing direct and mediated counts on a shared scale shows the discrepancy
04that discrepancy is what interference means operationally

In standard physics

The double slit with a which-path detector

Superposition presented as the operational fact that matters: which-path information changes the counts. The double slit reduced to its bookkeeping core.

boundary · One committed scenario. It rests on the declared phase operation and stops short of a general interference theorem.

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