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From experiments to geometry

Predict first, then run the experiment. The rules come next, and geometry is how we write them down. Math appears only when you need it.

Start with Level 0

Level 0 · Phenomena

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Two experiments where everyday intuition fails, and the three rules that explain them.

Units

  1. Three polarizersabout 5 min
  2. Mach–Zehnder interferometerabout 5 min
  3. Three rulesabout 5 min

Level 1 · Geometry

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The three rules drawn as an arrow on a circle: gates turn or mirror it, measurement squares its shadow.

Units

  1. The circle and phaseabout 7 min
  2. Gates turn the arrowabout 7 min
  3. Measuring casts a shadowabout 7 min
  4. Two mirrors make a turnabout 7 min

Level 2 · Complex numbers & multiple qubits

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i as a quarter turn, relative phase, and two qubits as four slots, up to the Bell state.

Units 5–6 and web level 5 are free. Web levels 6 (CNOT) and 7 (Bell) need Pro; one Bell state can be built free in the circuit lab.

Units

  1. Complex numbers are turnsabout 8 min
  2. More qubits, more slotsabout 8 min

Level 3 · Physics

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How real devices behave: decoherence and noise, the Pro+ track, and the calibration lab.

Pro. Levels 25–46 are labeled Pro+ in the course; they are included in Pro.

This level continues in the existing lessons and labs.

9 units · about 59 min