Quantum Mechanics

1. Collapse Timing Dependence on Spatial Separation

Near Future QM Small deviation (~ps)
CBF Prediction:

Wavefront collapse time increases with spatial extent of the wavefunction. For a wavefront spanning distance L, collapse delay beyond baseline: Δτ_collapse ≈ L/c + τ₀

Standard QM:

Instantaneous collapse regardless of spatial extent. No delay from wavefunction size.

Experimental Signature:
  • Prepare large (~cm scale) single-photon wavefunction using beam splitters
  • Measure time between arrival at detector and when interference pattern updates
  • CBF predicts ~30 ps delay for L = 1 cm. Standard QM: 0 delay
  • Requires femtosecond timing resolution + single-photon detection
Falsification Threshold: If collapse timing is completely independent of spatial extent (no L/c term detectable), Event Ledger mechanism is falsified.

2. Decoherence Without Dissipation (D‑field Scars)

Testable Now QM Qualitative difference
CBF Prediction:

Vetoed branches reduce coherence by writing D‑field scars (history of pruned attempts) without depositing heat in the system or bath. Coherence can fall substantially while measured thermal energy remains flat within instrumentation limits.

Standard QM:

Environment‑induced decoherence is usually tied to uncontrolled coupling that also exchanges energy. Pure dephasing is acknowledged, but is typically modeled as weak, source‑specific noise rather than a persistent history bias.

Experimental Signature:
  • Platform: single‑photon Mach–Zehnder or superconducting‑qubit Ramsey interferometry at cryogenic temperature.
  • Protocol: run repeated interaction‑free veto trials (dark‑port clicks or high‑hazard paths) to accumulate scars, then remove the veto.
  • Measure simultaneously: (i) fringe visibility/contrast, (ii) precise calorimetry or noise thermometry of the interferometer region, and (iii) residual path bias after veto removal.
  • CBF signal: visibility drops faster than any measurable heat uptake, plus a small post‑removal path bias that relaxes on a finite timescale (scar decay).
Controls / Confound Rejection:
  • Swap in a sham veto with identical optics but no hazard, to confirm no comparable bias forms.
  • Vary veto rate: CBF predicts scar size scales with cumulative veto count, not with optical loss or bath temperature.
  • Temperature guard: verify Johnson noise and black‑body photon flux are unchanged between runs.
Falsification Threshold: If decoherence is always accompanied by commensurate energy exchange within sensitivity, and no post‑veto bias is observed, the D‑field scar mechanism is falsified.

3. High-Order Interference Pattern Deviations

Near Future QM Small (~10⁻⁴ relative)
CBF Prediction:

In large-N slit gratings, a finite temporal coincidence window of the Event Ledger limits perfect phase reconciliation for very high fringe orders. Visibility decreases with order even when geometric coherence is satisfied: VCBF ≈ VQM · (1 − n²·τgate/Tcoh) where n is fringe order, τgate is the Ledger’s effective timing gate, and Tcoh is source coherence time.

Standard QM:

For path differences within the coherence length, visibility is order-independent. No systematic n-dependent drop beyond optical imperfections.

Experimental Signature:
  • High-quality transmission grating with N ≥ 1000 slits and sub-µrad angular stability.
  • Measure visibility for n = 10–20 while holding geometry and illumination constant.
  • CBF expects a small, systematic reduction at high orders, target scale ~10⁻⁴ relative to low orders.
  • Use intensity-linear detectors and flat-field calibration to reach <0.1% visibility uncertainty.
Controls / Confounds:
  • Grating MTF: Characterize grating transfer function at high spatial frequencies and deconvolve it.
  • Source linewidth: Lock laser and verify Tcoh ≫ optical path spread across measured orders.
  • Detector linearity: Calibrate pixel response, avoid clipping, correct for blooming/PRNU.
  • Aperture vignetting: Keep pupil fixed, confirm identical NA across orders.
Falsification Threshold: If, after deconvolving grating MTF and detector effects, high-order visibility matches standard QM (no residual ∝ n² dependence within the error budget), the finite coincidence-window prediction is falsified.

4. Phase-Reset Memory in Re-Interference

Near Future QM Moderate (~1–5 %)
CBF Prediction:

After deliberate coherence loss, partial visibility can re-emerge once D-field scars decay. The Ledger retains latent phase correlations that slowly “heal,” restoring a fraction of interference contrast.

Standard QM:

Once a superposition decoheres into a mixed state, re-combining beams without a fresh coherent source cannot restore visibility beyond instrumental drift.

Experimental Signature:
  • Alternate destructive “veto” runs and idle intervals Δt between interferometer shots.
  • Measure visibility recovery V(Δt) ≈ V₀ (1 − e−Δt/τscar).
  • CBF predicts τscar on the order of seconds–minutes, depending on environment.
Falsification Threshold: If visibility never rebounds beyond statistical noise, D-field memory is falsified.

5. Collapse-Timing Jitter vs Source Coherence

Testable Now QM Statistical (~ps variance)
CBF Prediction:

Commit-time jitter of correlated detections scales inversely with source coherence time: σCBF ≈ τ₀ (Tcoh,ref/Tcoh). Longer-coherence sources yield tighter coincidence histograms once instrumental jitter is removed.

Standard QM:

Timing variance arises only from detector response and optical dispersion; coherence time affects visibility, not jitter width.

Experimental Signature:
  • Use heralded-photon pairs with variable linewidth (etalon or cavity tuning).
  • Measure coincidence histogram width σ vs. Tcoh.
  • CBF predicts σ ∝ 1/Tcoh; standard QM predicts flat σ.
Falsification Threshold: If coincidence-time variance stays constant once detectors are calibrated, commit-latency scaling is falsified.

6. Weak-Measurement Hysteresis

Near Future QM Small phase drift (~mrad)
CBF Prediction:

Sequential weak measurements accumulate a tiny Ledger load, producing a cumulative phase lag: δφ ≈ ζ Nmeas τ₀ / Tcycle. Later weak values drift systematically relative to early trials.

Standard QM:

Weak measurements are non-invasive; ensemble averages remain invariant to measurement order.

Experimental Signature:
  • Perform repeated weak-value extractions on a stable qubit or photon ensemble.
  • Track mean weak phase vs. repetition count Nmeas.
  • CBF predicts a linear drift; standard QM predicts flat phase within noise.
Falsification Threshold: No measurable drift (|δφ| < 0.1 mrad over 10⁴ runs) falsifies cumulative Ledger load.

7. Polarization-Dependent D-Field Write Rate

Testable Now QM Qualitative difference
CBF Prediction:

D-field pruning rate depends on polarization topology: linear polarization (spin 0) writes scars more efficiently than circular or elliptical (spin ±1). Spin-locked modes self-cancel partial pruning through rotational averaging.

Standard QM:

Decoherence and scattering rates depend only on coupling strength and environment, not on polarization handedness.

Experimental Signature:
  • Run identical single-photon interferometers with linear and circular polarization.
  • Measure long-term visibility decay V(t).
  • CBF predicts Vlin < Vcirc over time; standard QM predicts equality.
Falsification Threshold: Equal decay curves within 0.5 % uncertainty falsify spin-weighted D-field coupling.