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Q19.3-Qubit GHZ Parity VerificationMedium

Q19.3-Qubit GHZ Parity Verification

Quantum EntanglementQubits: 3Q
Generate the 3-qubit GHZ state and verify computational basis measurements strictly yield only |000⟩ or |111⟩.
Target Objective:
Construct GHZ ∣GHZ⟩=12(∣000⟩+∣111⟩)|\text{GHZ}\rangle = \frac{1}{\sqrt{2}}(|000\rangle + |111\rangle) and verify measurement probability of 000 is ~50%.
Judge Acceptance Criteria:

Measurement probability for designated basis state must reach ≥ 45%.

Gates:
q[0]|0⟩
S0
S1
S2
S3
S4
S5
S6
S7
q[1]|0⟩
S0
S1
S2
S3
S4
S5
S6
S7
q[2]|0⟩
S0
S1
S2
S3
S4
S5
S6
S7
Click slot to place selected gate. Right-click to remove.0 gates in circuit
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