Multiple choice
After this circuit, what is P(|01⟩) for the whole 2-qubit register measured together (qubit 0 leftmost)?
const c = circuit(2); c.h(0); c.cp(Math.PI / 2, 0, 1); c.h(1); c.swap(0, 1); return c;
Commit your prediction for P(|01⟩) — then run it.