Lesson 161: Two-qubit basis and CNOT scaffolding
Focus
Separate statistical noise from calibration drift before claiming algorithm wins. Token Two-qubit basis and CNOT scaffolding:161 keeps neighbouring lessons differentiable.
Key ideas
- Thread: Two-qubit basis and CNOT scaffolding · drill v1 · spin
498487. - 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 `0.06` @ confidence `95`
2. Pilot shots `256` expanding to `7030` if variance plateaus
3. Telemetry fields `job_id,device_tz,mitigation_bundle`
4. Stop rule `halt if RB infidelity > 0.00246`
Practice
Practice List five failure signatures unique to your organiser’s QPUs or simulators. — 161 Bump literals mindset by 9.