laboneq_applications.contrib.experiments.scan_pump_parameters

This module defines the TWPA tune up workflow.

In this experiment, we sweep the pump frequency and power at a fixed probe frequency to characterize the parametric amplifier.

The TWPA tune up experiment has the following pulse sequence:

TWPA --- [ measure ]

This experiment only supports 1 TWPA at the time.

create_experiment(qpu, parametric_amplifier, pump_frequency, pump_power, pump_on=False, probe_on=False, options=None)

Creates a TWPA tune up Experiment.

Parameters:

Name	Type	Description	Default
qpu	QPU	The qpu consisting of the original pas and quantum operations.	required
parametric_amplifier	TWPA	The parametric amplifier to run the experiments on.	required
pump_frequency	ArrayLike	The frequencies to sweep over for each amplifier. It must be a list of lists of numbers or arrays.	required
pump_power	ArrayLike	The powers to sweep over for each parametric amplifier. It must be a list of lists of numbers or arrays.	required
pump_on	bool	Whether to turn on the pump tone.	False
probe_on	bool	Whether to turn on the probe tone.	False
options	TWPATuneUpExperimentOptions | None	The options for building the experiment. See [TWPATuneUpExperimentOptions] 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 = TWPATuneUpExperimentOptions(**options)
twpa = TWPA("twpa0")
qpu = QPU(
    pas=[twpa],
    quantum_operations=TWPAOperations(),
)
create_experiment(
    qpu=qpu,
    parametric_amplifier=twpa,
    pump_power=np.linspace(0, 10, 501),
    pump_frequency=np.linspace(7.1e9, 7.6e9, 501),
    options=options,
)

experiment_workflow(session, qpu, parametric_amplifier, pump_frequency, pump_power, temporary_parameters=None, options=None)

The Workflow for scanning the pump parameters of a TWPA.

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 parametric amplifiers and quantum operations.	required
parametric_amplifier	TWPA	The parametric amplifier to run the experiments on.	required
pump_frequency	ArrayLike	The pump frequencies to sweep over sent to the parametric amplifier. Must be a list of numbers or an array.	required
pump_power	ArrayLike	The pump powers to sweep over sent to the parametric amplifier. Must be a list of numbers or an array.	required
temporary_parameters	dict[str, dict | TWPAParameters] | None	The temporary parameters to update the parametric amplifiers with.	None
options	TWPATuneUpWorkflowOptions | None	The options for building the workflow.	None

Returns:

Name	Type	Description
result	None	The result of the workflow.

Example

options = experiment_workflow.options()
options.create_experiment.count(10)
twpa = TWPA("twpa0")
qpu = QPU(
    qubits=[twpa],
    quantum_operations=TWPAOperations(),
)
result = experiment_workflow(
    session=session,
    qpu=qpu,
    parametric_amplifier=twpa,
    pump_power=np.linspace(0, 10, 501),
    pump_frequency=np.linspace(7.1e9, 7.6e9, 501),
    options=options,
).run()