Scientific ledger
Accepted results, qualified transfer evidence, and rejected interpretations live together. A failed gate stays visible because it changes what we do next.
| Run | Status | Evidence level | Date |
|---|---|---|---|
| Live 780 nm production optimization · current | checkpointed | Qualified production grid; every-step direct gates and periodic Q validation | 2026-08-17 |
| 780 nm production qualification | accepted | Symmetry-reduced, grid/domain-converged fixed-frequency launch gates | 2026-08-17 |
| 2.5D parity qualification | accepted | Exact reduced-basis equivalence and derivative validation | 2026-08-16 |
| 780 nm atom proposal | proposal | Radiation-aware 2.5D driven response; pole gates pending | 2026-08-15 |
| 780 nm vector blocker | blocked | Refined-grid attempt; no Maxwell field returned | 2026-08-15 |
| 780 nm mode blocker | blocked | 2.5D acceptance attempt; no residual returned | 2026-08-15 |
| Linewidth step 001 | accepted | Controlled-grid full-vector | 2026-08-15 |
| Upper-pole diagnostic | rejected | Controlled-grid full-vector diagnostic | 2026-08-15 |
| Paired 3D transfer | qualified | 3D candidate; pole gate not accepted | 2026-08-15 |
| Cross-basis validation | accepted | Basis-stable 2.5D candidate | 2026-08-15 |
| Scalar 2.5D run | accepted | Reduced-model optimization | 2026-08-15 |
The qualified 40 x 70 x 28 component-symmetry-reduced Maxwell solver is optimizing the centered z-dipole response at exactly 780 nm without a preset iteration count. Direct gates run every step; the independent 81-point, seven-probe Q diagnostic runs every tenth step and intervening checkpoints are provisional.
All five launch gates pass for the fixed-frequency 780 nm atom-coupling optimizer. Component-correct parity cuts the production system from 235,200 physical unknowns to 29,499, grid/domain changes are 0.36%/1.19%, and an exact-grid trial improves coupling. The exact production-grid Q diagnostic reports no pole in the target window.
The symmetric scalar Fourier/FEM atom solve was restricted to its exact even x/y/z sector, reducing the launch basis from 1,701 to 275 unknowns while preserving response, field, and gradient to roundoff.
The optimizer directly increased the centered-emitter Green-response proxy at exactly 780 nm on a 76 x 40 topology grid with sixteen cells across the protected gap.
A 40 x 20 x 20 full-vector profile fixed the z-extrusion and geometry resolution, but the propagating semi-infinite lead did not return an initial 780 nm field within 30 minutes.
The direct objective was coupled to strict nonlinear residual, mode identity, localization, and frequency-window gates, but pole reacquisition did not return within the 80-minute cutoff.
A differentiable topology step improved the directly resolved Fano linewidth Q and passed all 15 physical and spectral gates, including fresh interleaved-frequency validation.
The rational shared-pole estimate and real-axis linewidth estimate disagreed, so the optimizer stopped before attempting a topology update.
Initial and optimized 2.5D densities were fitted independently to the same 3D topology map and their vector modes were reacquired on a common Yee grid.
The initial and optimized modes were reacquired from scratch on a 3,025-unknown basis, preserving field identity and the Q improvement.
Four accepted trust-region steps more than doubled the tracked scalar Q while preserving localization, mode identity, the protected air strip, and reflection symmetry.