qiskit.algorithms.IterativePhaseEstimation.estimate

IterativePhaseEstimation.estimate(unitary, state_preparation)

Estimate the eigenphase of the input unitary and initial-state pair.

매개변수

• 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.

반환

Estimated phase in an IterativePhaseEstimationResult object.

예외 발생

AlgorithmError – If neither sampler nor quantum instance is provided.

반환 형식

IterativePhaseEstimationResult