laboneq_applications.experiments.resonator_spectroscopy_amplitude

This module defines the resonator spectroscopy amplitude sweep experiment.

In this experiment, we sweep the resonator frequency and the amplitude of a measure pulse in a 2D fashion to characterize the resonator coupled to the qubit.

The resonator spectroscopy amplitude sweep experiment has the following pulse sequence:

qb --- [ measure ]
     sweep amplitude

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

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

A Resonator Spectroscopy where the measure-pulse amplitude is also swept.

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
amplitudes	ArrayLike	The amplitudes to sweep over for each resonator. it must be a list of lists of numbers or arrays.	required
options	ResonatorSpectroscopyExperimentOptions | None	The options for building the experiment. See [SpectroscopyExperimentOptions] and [BaseExperimentOptions] for accepted options. Overwrites the options from [TuneupExperimentOptions] and [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 qubit and qubit_amplitudes are not of the same length.
ValueError	If qubit_amplitudes or qubit_amplitudes is not a list of numbers.

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),
    amplitudes=np.linspace(0.1, 1, 10),
    options=options,
)

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

The Workflow for a resonator spectroscopy with a readout-amplitude sweep.

The workflow consists of the following steps:

• create_experiment
• compile_experiment
• run_experiment
• analysis_workflow

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
amplitudes	ArrayLike	The amplitudes of the readout pulses to sweep over. Must be a list of numbers or an array.	required
temporary_parameters	dict[str, dict | QuantumParameters] | 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 = SpectroscopyWorkflowOptions()
options.create_experiment.count = 10
qpu = QPU(
    qubits=[TunableTransmonQubit("q0"), TunableTransmonQubit("q1")],
    quantum_operations=TunableTransmonOperations(),
)
temp_qubits = qpu.copy_qubits()
result = run(
    session=session,
    qpu=qpu,
    qubit=temp_qubits[0],
    frequencies=np.linspace(7.1e9, 7.6e9, 501),
    amplitudes=np.linspace(0.1, 1, 10),
    options=options,
)