Source code for qiskit_experiments.library.characterization.analysis.fine_amplitude_analysis

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# (C) Copyright IBM 2021.
# This code is licensed under the Apache License, Version 2.0. You may
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"""Fine Amplitude calibration analysis."""

import lmfit

import qiskit_experiments.curve_analysis as curve

[docs] class FineAmplitudeAnalysis(curve.ErrorAmplificationAnalysis): r"""An analysis class for fine amplitude calibrations to define the fixed parameters. # section: note The following parameters are fixed. * :math:`{\rm apg}` The angle per gate is set by the user, for example pi for a pi-pulse. * :math:`{\rm phase\_offset}` The phase offset in the cosine oscillation, for example, :math:`\pi/2` if a square-root of X gate is added before the repeated gates. """ # pylint: disable=super-init-not-called def __init__(self): # pylint: disable=non-parent-init-called curve.CurveAnalysis.__init__( self, models=[ lmfit.models.ExpressionModel( expr="amp / 2 * (2 * x - 1) + base", name="spam cal.", ), lmfit.models.ExpressionModel( expr="amp / 2 * cos((d_theta + angle_per_gate) * x - phase_offset) + base", name="fine amp.", ), ], ) @classmethod def _default_options(cls): """Return the default analysis options.""" default_options = super()._default_options() default_options.data_subfit_map = { "spam cal.": {"series": "spam-cal"}, "fine amp.": {"series": 1}, } return default_options