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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.

Tipo de retorno

IterativePhaseEstimationResult

Retorno

Estimated phase in an IterativePhaseEstimationResult object.

Levanta

AlgorithmError – If neither sampler nor quantum instance is provided.