|q⟩ Bad Qubits

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Multiple choice
Run this circuit. What is qubit 0's Bloch Y-component — the expectation value ⟨Y⟩?
⚛ The apparatus
const angle = Math.PI / 2; // Omega * t
const c = circuit(1);
c.rx(angle, 0);
return c;

Commit your prediction for ⟨Y⟩ of qubit 0 — then run it.