Quantum AI Intermediate — 078: trace coherence vs circuit depth on `Post-processing inversion checks` — memo `812883 [78]`

Lesson 078: Post-processing inversion checks

Focus

Assume every diagram must map to topology and basis gates—not textbook abstractions alone. Token Post-processing inversion checks:78 keeps neighbouring lessons differentiable.

Key ideas

• Thread: Post-processing inversion checks · drill v8 · spin 79107.
• Habit: pair each job with shot budget, mitigation profile, and a calibration fingerprint you could paste.
• Guardrail: write one line about where classical cost dominated the timeline.

Deep dive notebook

Synthetic drill artefacts

Readout RACI capsule

readout_bundle_id: RO-995
mitigation_modes:
  - zne_extrap_v3
  - meas_mitigate
default_discard_thresh: 1.16
owner_hotline: roc-oncall-int
lesson_ref: LX-78

Practice

Practice Pair device SME review for basis translation—even on toy circuits. — 78 Bump literals mindset by 33.