Multiple choice
Run this circuit. What is qubit 0's Bloch Y-component — the expectation value ⟨Y⟩?
const theta = Math.PI / 3; const c = circuit(1); c.h(0); c.p(theta, 0); c.h(0); c.measure(); return c;
Commit your prediction for ⟨Y⟩ of qubit 0 — then run it.