Atom-gap cavity optimizer dashboard

Atom-gap cavity optimizer dashboard#

Active research checkpoint

This page shows the latest saved exact-binary projection, not a finished result. Q and Purcell below are differentiable 0.68 ps optimization proxies. They become final claims only after the independent 3 ps ringdown and phasor validation reaches both targets.

checkpoint e684f253d6 update 135 hard gap binary relaxation field matches geometry
Q proxy718.9target 1,000
Purcell proxy2.054target 5
Mode volume64.65µm³ proxy
Vacuum gap1.000µm · hard constraint
Q target attainment
71.9%
Purcell target attainment
41.1%

Current physical geometry#

Current unfolded binary atom-gap cavity geometry

The literal, symmetry-unfolded z=0 material projection. Cyan is silicon, dark is vacuum, dashed lines bound the exact 1 µm exclusion region, and the marker is the centered Ey-oriented atom. The plotted free-form domain is 7 × 3 µm at 25 nm design spacing with a 75 nm conic filter.#

Current electric field#

Current atom-gap cavity Ey field at the tracked resonance

The phase-aligned real Ey phasor from a separate forward solve of the fingerprinted binary geometry. White contours mark the dielectric boundary. Snapshot status: 2026-08-19T12:28:18.063280+00:00#

How to read this checkpoint#

  • The geometry shown is the exact β=16 hard projection with the gap forcibly set to vacuum; gray optimization density is never presented as the device.

  • The optimizer uses x/y mirror symmetries and restores both halves for these plots.

  • While either target is unmet, each accepted binary step may lose at most 5% Q or 2% Purcell and must improve at least one of them.

  • A stalled hard projection triggers a dual-projection relaxation cycle. Soft controls may explore, but transfer requires a better exact-binary score.

  • The field image is accepted only when its stored SHA-256 control fingerprint equals the displayed geometry fingerprint.

Checkpoint provenance

Value

Saved

2026-08-19 12:34:07 UTC

Artifact version

freeform_atom_gap_v32_longitudinal_domain_expansion

Control shape

140 × 60 quarter-domain

Hard-gap update

136

Metric source

hard_gap_binary_q_ascent

Latest step accepted

false

Control fingerprint

e684f253d666845ab3a34bc5a194bb5026a5efd1b41b2b413062a48a4b3d6b3a

Refresh locally#

Geometry and metrics are CPU-only:

JAX_PLATFORMS=cpu uv run python scripts/generate_atom_gap_dashboard.py

Capture a matching forward field when the optimization GPU is idle:

TF_GPU_ALLOCATOR=cuda_malloc_async uv run python scripts/generate_atom_gap_dashboard.py --capture-field