Build your first quantum experiment
The capstone is one complete experiment: write a numeric prediction for the Bell circuit, run 1,000 shots, check the counts against sampling statistics, change one gate with a fresh prediction, and record the circuit, shot count, seed, counts and explanation so someone else can reproduce both the result and the reasoning.
Everything in this course condenses into one loop, and running it once — properly — is the difference between having read about quantum computing and having done some.
- Predict: compute the ideal outcome distribution by hand, and write it down first.
- Build: express the circuit as Circuit IR in the Lab.
- Run: choose a shot count and execute.
- Inspect: compare counts against the prediction, including the expected sampling wobble.
- Modify: change exactly one thing, predicting again before you run.
- Explain and record: keep the circuit JSON, the shot count, the seed (the number that initialises the random sampler, making a simulated run exactly repeatable), the counts, and a short written explanation.
The saved bundle is the experiment. A histogram screenshot without the circuit, seed and reasoning is just a picture.
You’ve read the opening of chapter 14 — 7 more sections follow, with worked examples and circuits you can run on the page. A free account unlocks every chapter of every course (paid plans aren’t live yet — early readers get everything free).