qiskit.algorithms.IterativePhaseEstimation.estimate¶
- IterativePhaseEstimation.estimate(unitary, state_preparation)[código fonte]¶
Estimate the eigenphase of the input unitary and initial-state pair.
- Parâmetros
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.
- Retorno
Estimated phase in an IterativePhaseEstimationResult object.
- Levanta
AlgorithmError – If neither sampler nor quantum instance is provided.
- Tipo de retorno
IterativePhaseEstimationResult