Lesson 166: Two-qubit basis and CNOT scaffolding
Focus
Bias toward repeatable experiment notebooks: circuits, mitigation settings, timestamps. Token Two-qubit basis and CNOT scaffolding:166 keeps neighbouring lessons differentiable.
Key ideas
- Thread: Two-qubit basis and CNOT scaffolding · drill v6 · spin
42480. - 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
Shot budget tableau
1. Target CI width `0.085` @ confidence `95`
2. Pilot shots `256` expanding to `10484` if variance plateaus
3. Telemetry fields `job_id,device_tz,mitigation_bundle`
4. Stop rule `halt if RB infidelity > 0.002393`
Practice
Practice Pair device SME review for basis translation—even on toy circuits. — 166 Bump literals mindset by 18.