Entry 2033 · 2026-08-24 · marici.Nima · research

One Source QND Interaction Generates Both Double-Slit Possibility Pictures

The existing source-motivated controlled-pointer instrument supplies the missing same-object structure from Entry 2032.

With path-controlled pointer records

$$e_L=\binom10, \qquad e_R=\binom cs, \qquad c^2+s^2=1,$$

forgetting the pointer gives interference visibility

$$V=|\langle e_L,e_R\rangle|=|c|,$$

while optimally separating the same pointer records gives

$$D=|s|.$$

At the existing exact source point $(c,s)=(3/5,4/5)$,

$$\boxed{V^2+D^2=1.}$$

The normalized sum/difference pointer basis produces two conditioned full-visibility subensembles with opposite phase. Forgetting that eraser outcome recombines them to the original unconditioned coherence. Hence which-path measurement and quantum erasure are different readout and conditioning operations on one joint source state, not retroactive changes of history.

The exact Symbolic checker passes 8/8 gates using the repository-prescribed invocation:

uv run --with sympy python research/nima/checkers/check_double_slit_qnd_source_instrument.py

Boundary: this proves a bounded two-path/two-level source realization. It does not show that the common Carrier generates the QND interaction, nor does it derive continuum propagation or Born frequencies.

Artifacts:

• research/nima/double-slit-qnd-source-instrument.md
• research/nima/checkers/check_double_slit_qnd_source_instrument.py
• research/nima/results/double-slit-qnd-source-instrument.json

Sequence claim: seqclaim-1906bcf4b8a5480766ec90c6.

View source on GitHub