laboneq_applications.contrib.experiments.twpa_spectroscopy

This module defines the TWPA spectroscopy experiment.

In this experiment, we sweep the frequency of a measure pulse to characterize the TWPA response.

The TWPA spectroscopy experiment has the following pulse sequence:

TWPA --- [ measure ]

This experiment only supports 1 TWPA at the time.

create_experiment(qpu, parametric_amplifier, frequencies, options=None)

Creates a TWPA Spectroscopy experiment.

Parameters:

Name	Type	Description	Default
qpu	QPU	The qpu consisting of the original TWPA and quantum operations.	required
parametric_amplifier	TWPA	The parametric amplifier to run the experiments on.	required
frequencies	ArrayLike	The readout frequencies to sweep over for the measure pulse (or CW) sent to the TWPA. Must be a list of numbers or an array.	required
options	TWPASpectroscopyExperimentOptions | None	The options for building the experiment. See [TWPASpectroscopyExperimentOptions] and [BaseExperimentOptions] for accepted options. Overwrites the options from [BaseExperimentOptions].	None

Returns:

Name	Type	Description
experiment	Experiment	The generated LabOne Q experiment instance to be compiled and executed.

Example

options = {
    "count": 10,
    "spectroscopy_reset_delay": 3e-6
}
options = TuneupExperimentOptions(**options)
setup = DeviceSetup()
qpu = QPU(
    qubits=[TunableTransmonQubit("q0"), TunableTransmonQubit("q1")],
    quantum_operations=TunableTransmonOperations(),
)
create_experiment(
    qpu=qpu,
    parametric_amplifier=twpa,
    frequencies=np.linspace(7.1e9, 7.6e9, 501),
    options=options,
)

experiment_workflow(session, qpu, parametric_amplifier, frequencies, temporary_parameters=None, options=None)

The TWPA Spectroscopy Workflow.

The workflow consists of the following steps:

• create_experiment
• compile_experiment
• run_experiment
• analysis_workflow
• update_qpu

Parameters:

Name	Type	Description	Default
session	Session	The connected session to use for running the experiment.	required
qpu	QPU	The qpu consisting of the original TWPA and quantum operations.	required
parametric_amplifier	TWPA	The parametric amplifier to run the experiments on.	required
frequencies	ArrayLike	The readout frequencies to sweep over for the measure pulse (or CW) sent to the TWPA. Must be a list of numbers or an array.	required
temporary_parameters	dict[str, dict | TWPAParameters] | None	The temporary parameters to update the TWPA with.	None
options	TuneUpWorkflowOptions | None	The options for building the workflow. In addition to options from [WorkflowOptions]	None

Returns:

Name	Type	Description
result	None	The result of the workflow.

Example

options = experiment_workflow.options()
options.spectroscopy_reset_delay(3e-6)
twpa = TWPA("twpa0")
qpu = QPU(
    pas=[twpa],
    quantum_operations=TWPAOperations(),
)
temp_qubits = qpu.copy_qubits()
result = experiment_workflow(
    session=session,
    qpu=qpu,
    parametric_amplifier=twpa,
    frequencies=np.linspace(7.1e9, 7.6e9, 501),
).run()