qdk_chemistry.algorithms.phase_estimation.iterative_phase_estimation module

Iterative phase estimation implementation.

This module implements the Kitaev-style iterative quantum phase estimation (IQPE) algorithm, which measures phase bits sequentially from most-significant to least-significant using a single ancilla qubit and adaptive feedback corrections.

References

Kitaev, A. (1995). arXiv:quant-ph/9511026. [Kit95]

class qdk_chemistry.algorithms.phase_estimation.iterative_phase_estimation.IterativePhaseEstimation(shots_per_bit=3)[source]

Bases: PhaseEstimation

Iterative Phase Estimation algorithm implementation.

Parameters:: shots_per_bit (int)

__init__(shots_per_bit=3)[source]

Initialize IterativePhaseEstimation with the given settings.

Parameters:: shots_per_bit (int) – The number of shots to execute per measuring a bit in the iterative phase estimation.

name()[source]

Return the name of the phase estimation algorithm.

Return type:: str

class qdk_chemistry.algorithms.phase_estimation.iterative_phase_estimation.IterativePhaseEstimationSettings[source]

Bases: PhaseEstimationSettings

Settings for the Iterative Phase Estimation algorithm.

__init__()[source]

Initialize the settings for Iterative Phase Estimation.

Parameters:: shots_per_bit – The number of shots to execute per measuring a bit in the iterative phase estimation.