laboneq_applications.experiments.resonator_spectroscopy

This module defines the resonator spectroscopy experiment.

In this experiment, we sweep the resonator frequency of a measure pulse to characterize the resonator coupled to the qubit.

The resonator spectroscopy experiment has the following pulse sequence:

qb --- [ measure ]

This experiment only supports 1 qubit at the time, and involves only its coupled resonator

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

Creates a Resonator Spectroscopy Experiment.

Parameters:

Name	Type	Description	Default
qpu	QPU	The qpu consisting of the original qubits and quantum operations.	required
qubit	QuantumElement	The qubit to run the experiments on. May be either a single qubit or a list of qubits.	required
frequencies	ArrayLike	The resonator frequencies to sweep over for each qubit. It must be a list of lists of numbers or arrays.	required
options	ResonatorSpectroscopyExperimentOptions | None	The options for building the experiment. See [ResonatorSpectroscopyExperimentOptions] 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.

Raises:

Type	Description
ValueError	If the acquisition_type is not AcquisitionType.SPECTROSCOPY.

Example

options = {
    "count": 10,
    "spectroscopy_reset_delay": 3e-6
}
options = TuneupExperimentOptions(**options)
setup = DeviceSetup()
qpu = QPU(
    qubits=[TunableTransmonQubit("q0"), TunableTransmonQubit("q1")],
    quantum_operations=TunableTransmonOperations(),
)
temp_qubits = qpu.copy_qubits()
create_experiment(
    qpu=qpu,
    qubit=temp_qubits[0],
    frequencies=np.linspace(7.1e9, 7.6e9, 501),
    options=options,
)

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

The Resonator Spectroscopy Workflow.

The workflow consists of the following steps:

• create_experiment
• compile_experiment
• run_experiment
• analysis_workflow
• update_qubits

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 qubits and quantum operations.	required
qubit	QuantumElement	The qubit to run the experiments on. It can be only a single qubit coupled to a resonator.	required
frequencies	ArrayLike	The resonator frequencies to sweep over for the readout pulse (or CW) sent to the resonator. Must be a list of numbers or an array.	required
temporary_parameters	dict[str, dict | TransmonParameters] | None	The temporary parameters to update the qubits with.	None
options	TuneUpWorkflowOptions | None	The options for building the workflow. In addition to options from [WorkflowOptions], the following custom options are supported: - create_experiment: The options for creating the experiment.	None

Returns:

Name	Type	Description
result	None	The result of the workflow.

Example

options = experiment_workflow.options()
options.create_experiment.count(10)
qpu = QPU(
    qubits=[TunableTransmonQubit("q0"), TunableTransmonQubit("q1")],
    quantum_operations=TunableTransmonOperations(),
)
temp_qubits = qpu.copy_qubits()
result = experiment_workflow(
    session=session,
    qpu=qpu,
    qubit=temp_qubits[0],
    frequencies=np.linspace(7.1e9, 7.6e9, 501),
    options=options,
).run()