Multiple choice
Run this circuit. What is qubit 0's Bloch X-component — the expectation value ⟨X⟩?
const gamma = Math.PI / 4; const beta = Math.PI / 4; const c = circuit(2); c.h(0); c.h(1); c.cx(0, 1); c.rz(-gamma, 1); c.cx(0, 1); c.rx(2 * beta, 0); c.rx(2 * beta, 1); return c;
Commit your prediction for ⟨X⟩ of qubit 0 — then run it.