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Given this code fragment, what is the probability that the measurement would result in 1?

qc = QuantumCircuit(1)
qc.rz(3 * math.pi/4, 0)

A] 0

B] 0.14645

C] 0.85355

D] 1

With calculating using the absolute value of -isin(theta/2) I got the answer as B but the correct answer is A can someone pls help me solve this question?

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Qubits are initially in the ∣0⟩ state. The Rz gate, which is a rotation around the z-axis, only changes the phase of the qubit states and not the probabilities of measuring 0 or 1 in the computational basis.

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  • $\begingroup$ Thank you so much for the help $\endgroup$
    – Ritvik Chowdary
    Commented May 15 at 13:35

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