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engines/quan_loncar_v1/package/quan_loncar_optimizer/engine/quan_loncar_series_phase55/README.md · assembled 2026-07-29 15:57 UTC.


Phase 55: native P2-z1/y3-z1 autograd rebaseline

This phase is intentionally gated on Phase 54. It evaluates Q, effective mode volume, feed-waveguide external Q, the guided decay fraction, and all 45 geometry derivatives using the vertically enriched waveguide and local-hole bases. No further optimization step should use the lower-order P2-z0/y3-z0 gradient once this phase passes.

Run from the project root:

python quan_loncar_series_phase55/run_phase55_native_p2_z1_y3_z1_autograd.py \
  --output quan_loncar_series_phase55/RESULTS_PHASE55.json

The independent small-cavity finite-difference audit is reproducible with:

python quan_loncar_series_phase55/run_phase55_z1_geometry_fd.py \
  --output quan_loncar_series_phase55/RESULTS_PHASE55_Z1_GEOMETRY_FD.json