laboneq_applications.analysis.amplitude_rabi

This module defines the analysis for an amplitude-rabi experiment.

The experiment is defined in laboneq_applications.experiments.

In this analysis, we first interpret the raw data into qubit populations using principle-component analysis or rotation and projection on the measured calibration states. Then we fit a cosine model to the qubit population and extract the pi and pi-half pulse amplitudes from the fit. Finally, we plot the data and the fit.

analysis_workflow(result, qubits, amplitudes, options=None)

The Amplitude Rabi analysis Workflow.

The workflow consists of the following steps:

• calculate_qubit_population
• fit_data
• extract_qubit_parameters
• plot_raw_complex_data_1d
• plot_population

Parameters:

Name	Type	Description	Default
result	RunExperimentResults	The experiment results returned by the run_experiment task.	required
qubits	QuantumElements	The qubits on which to run the analysis. May be either a single qubit or a list of qubits. The UIDs of these qubits must exist in the result.	required
amplitudes	QubitSweepPoints	The amplitudes that were swept over in the amplitude-Rabi experiment for each qubit. If qubits is a single qubit, amplitudes must be a list of numbers or an array. Otherwise, it must be a list of lists of numbers or arrays.	required
options	TuneUpAnalysisWorkflowOptions | None	The options for building the workflow, passed as an instance of [TuneUpAnalysisWorkflowOptions]. See the docstring of this class for more details.	None

Returns:

Name	Type	Description
WorkflowBuilder	None	The builder for the analysis workflow.

Example

options = TuneUpAnalysisWorkflowOptions()
result = analysis_workflow(
    results=results
    qubits=[q0, q1],
    amplitudes=[
        np.linspace(0, 1, 11),
        np.linspace(0, 0.75, 11),
    ],
    options=options,
).run()

extract_qubit_parameters(qubits, processed_data_dict, fit_results, options=None)

Extract the qubit parameters from the fit results.

Parameters:

Name	Type	Description	Default
qubits	QuantumElements	The qubits on which to run the analysis. May be either a single qubit or a list of qubits. The UIDs of these qubits must exist in the processed_data_dict.	required
processed_data_dict	dict[str, dict[str, ArrayLike]]	the processed data dictionary returned by process_raw_data	required
fit_results	dict[str, ModelResult]	the fit-results dictionary returned by fit_data	required
options	ExtractQubitParametersTransitionOptions | None	The options for extracting the qubit parameters. See [ExtractQubitParametersTransitionOptions] for accepted options.	None

Returns:

Type	Description
dict[str, dict[str, dict[str, int | float | Variable | None]]]	dict with extracted qubit parameters and the previous values for those qubit
dict[str, dict[str, dict[str, int | float | Variable | None]]]	parameters. The dictionary has the following form:
dict[str, dict[str, dict[str, int | float | Variable | None]]]	```python
dict[str, dict[str, dict[str, int | float | Variable | None]]]	{ "new_parameter_values": { q.uid: { qb_param_name: qb_param_value }, } "old_parameter_values": { q.uid: { qb_param_name: qb_param_value }, }
dict[str, dict[str, dict[str, int | float | Variable | None]]]	}
dict[str, dict[str, dict[str, int | float | Variable | None]]]	```
dict[str, dict[str, dict[str, int | float | Variable | None]]]	If the do_fitting option is False, the new_parameter_values are not extracted
dict[str, dict[str, dict[str, int | float | Variable | None]]]	and the function only returns the old_parameter_values.
dict[str, dict[str, dict[str, int | float | Variable | None]]]	If a qubit uid is not found in fit_results, the new_parameter_values entry for
dict[str, dict[str, dict[str, int | float | Variable | None]]]	that qubit is left empty.

fit_data(qubits, processed_data_dict, options=None)

Perform a fit of a cosine model to the data.

Parameters:

Name	Type	Description	Default
qubits	QuantumElements	The qubits on which to run the analysis. May be either a single qubit or a list of qubits. The UIDs of these qubits must exist in the processed_data_dict.	required
processed_data_dict	dict[str, dict[str, ArrayLike]]	the processed data dictionary returned by process_raw_data	required
options	FitDataOptions | None	The options class for this task as an instance of [FitDataOptions]. See the docstring of this class for accepted options.	None

Returns:

Type	Description
dict[str, ModelResult]	dict with qubit UIDs as keys and the fit results for each qubit as keys.

plot_population(qubits, processed_data_dict, fit_results, qubit_parameters, options=None)

Create the amplitude-Rabi plots.

Parameters:

Name	Type	Description	Default
qubits	QuantumElements	The qubits on which to run the analysis. May be either a single qubit or a list of qubits. The UIDs of these qubits must exist in processed_data_dict and qubit_parameters.	required
processed_data_dict	dict[str, dict[str, ArrayLike]]	the processed data dictionary returned by process_raw_data	required
fit_results	dict[str, ModelResult] | None	the fit-results dictionary returned by fit_data	required
qubit_parameters	dict[str, dict[str, dict[str, int | float | Variable | None]]] | None	the qubit-parameters dictionary returned by extract_qubit_parameters	required
options	PlotPopulationOptions | None	The options class for this task as an instance of [PlotPopulationOptions]. See the docstring of this class for accepted options.	None

Returns:

Type	Description
dict[str, Figure]	dict with qubit UIDs as keys and the figures for each qubit as values.
dict[str, Figure]	If a qubit uid is not found in fit_results, the fit and the textbox with the
dict[str, Figure]	extracted qubit parameters are not plotted.