qiskit.algorithms.IterativePhaseEstimation.construct_circuit¶
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IterativePhaseEstimation.construct_circuit(unitary, state_preparation, k, omega=0, measurement=False)[source]¶ Construct the kth iteration Quantum Phase Estimation circuit.
For details of parameters, see Fig. 2 in https://arxiv.org/pdf/quant-ph/0610214.pdf.
- Parameters
unitary (
QuantumCircuit) – The circuit representing the unitary operator whose eigenvalue (via phase) will be measured.state_preparation (
QuantumCircuit) – The circuit that prepares the state whose eigenphase will be measured. If this parameter is omitted, no preparation circuit will be run and input state will be the all-zero state in the computational basis.k (
int) – the iteration idx.omega (
float) – the feedback angle.measurement (
bool) – Boolean flag to indicate if measurement should be included in the circuit.
- Returns
the quantum circuit per iteration
- Return type