2026-08-17 · Symmetry-reduced, grid/domain-converged fixed-frequency launch gates

780 nm production optimizer qualification

accepted artifacts updated 2026-08-17 18:26 UTC

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.

Top-level gates

5/5

Diagnostic Q

no physical lower-half-plane pole in 0.995--1.005

System unknowns

235,200 → 29,499

Atom trial

1494.465 → 1495.989

Trial gain

+0.102%

Peak RSS

6.733

Decision. Proceed with the full fixed-frequency atom-coupling optimization on the qualified 40 x 70 x 28 configuration. Under the discovery cadence adopted on 2026-08-18, run the full Q diagnostic every tenth step and mark intervening checkpoints provisional; make no resonant-cavity claim until a physical 780 nm pole is independently reacquired.

780 nm production optimizer qualification — Accepted fixed-geometry y-grid and matched-PML domain convergence for the retuned production lead.

Gate record

Gate	Result
complete exact production gradient	PASS
component correct symmetry and boundary	PASS
fixed geometry grid and domain converged	PASS
q diagnostic complete and honest	PASS
restart resources and improving trial	PASS

Reproducibility artifacts

Reports, raw metrics, configurations, checkpoints, and validation data retained for this attempt.

metrics.json metrics.json metrics.json metrics.json gradient_metrics.json benchmark_metrics.json q_metrics.json metrics.json multiprobe_response.csv point_metrics.json point_metrics.json point_metrics.json fullvector_atom_780_production_refined.json 2026-08-17-production-qualification.md

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