Note

This is the documentation for the current state of the development branch of Qiskit Experiments. The documentation or APIs here can change prior to being released.

NoisyDelayAerBackend

class NoisyDelayAerBackend(t1=None, t2=None, dt=None, backend=None, **backend_options)

Backend for T1 and T2Ramsey experiments.

configure backend noise

Attributes

coupling_map

Return the CouplingMap object

dt

Return the system time resolution of input signals

This is required to be implemented if the backend supports Pulse scheduling.

Returns:

The input signal timestep in seconds. If the backend doesn’t define dt, None will be returned.

dtm

Return the system time resolution of output signals

Returns:

The output signal timestep in seconds.

Raises:

NotImplementedError – if the backend doesn’t support querying the output signal timestep

instruction_durations

Return the InstructionDurations object.

instruction_schedule_map

Return the InstructionScheduleMap for the instructions defined in this backend’s target.

Deprecated since version 1.3: The property qiskit.providers.backend.BackendV2.instruction_schedule_map is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.providers.backend.BackendV2.instruction_schedule_map will have no alternative in Qiskit.

instructions

A list of Instruction tuples on the backend of the form (instruction, (qubits)

max_circuits

meas_map

Return the grouping of measurements which are multiplexed

This is required to be implemented if the backend supports Pulse scheduling.

Returns:

The grouping of measurements which are multiplexed

Raises:

NotImplementedError – if the backend doesn’t support querying the measurement mapping

num_qubits

Return the number of qubits the backend has.

operation_names

A list of instruction names that the backend supports.

operations

A list of Instruction instances that the backend supports.

options

Return the options for the backend

The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the run() method.

provider

Return the backend Provider.

Returns:

the Provider responsible for the backend.

Return type:

Provider

target

version = 2

description

Optional human-readable description.

online_date

Date that the backend came online.

backend_version

Version of the backend being provided. This is not the same as BackendV2.version, which is the version of the Backend abstract interface.

Methods

acquire_channel(qubit)

Return the acquisition channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

Deprecated since version 1.3: The method qiskit.providers.backend.BackendV2.acquire_channel() is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.providers.backend.BackendV2.acquire_channel() will have no alternative in Qiskit.

Returns:

The Qubit measurement acquisition line.

Return type:

AcquireChannel

Raises:

NotImplementedError – if the backend doesn’t support querying the measurement mapping

available_devices()

Return the available simulation methods.

available_methods()

Return the available simulation methods.

clear_options()

Reset the simulator options to default values.

configuration()

Return the simulator backend configuration.

Returns:

the configuration for the backend.

Return type:

BackendConfiguration

control_channel(qubits)

Return the secondary drive channel for the given qubit

This is typically utilized for controlling multiqubit interactions. This channel is derived from other channels.

This is required to be implemented if the backend supports Pulse scheduling.

Deprecated since version 1.3: The method qiskit.providers.backend.BackendV2.control_channel() is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.providers.backend.BackendV2.control_channel() will have no alternative in Qiskit.

Parameters:

qubits (Iterable[int]) – Tuple or list of qubits of the form (control_qubit, target_qubit).

Returns:

The multi qubit control line.

Return type:

List[ControlChannel]

Raises:

NotImplementedError – if the backend doesn’t support querying the measurement mapping

drive_channel(qubit)

Return the drive channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

Deprecated since version 1.3: The method qiskit.providers.backend.BackendV2.drive_channel() is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.providers.backend.BackendV2.drive_channel() will have no alternative in Qiskit.

Returns:

The Qubit drive channel

Return type:

DriveChannel

Raises:

NotImplementedError – if the backend doesn’t support querying the measurement mapping

classmethod from_backend(backend, **options)

Initialize simulator from backend.

measure_channel(qubit)

Return the measure stimulus channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

Deprecated since version 1.3: The method qiskit.providers.backend.BackendV2.measure_channel() is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.providers.backend.BackendV2.measure_channel() will have no alternative in Qiskit.

Returns:

The Qubit measurement stimulus line

Return type:

MeasureChannel

Raises:

NotImplementedError – if the backend doesn’t support querying the measurement mapping

properties()

Return the simulator backend properties if set.

Returns:

The backend properties or None if the

backend does not have properties set.

Return type:

BackendProperties

qubit_properties(qubit)

Return QubitProperties for a given qubit.

If there are no defined or the backend doesn’t support querying these details this method does not need to be implemented.

Parameters:

qubit (int | List[int]) – The qubit to get the QubitProperties object for. This can be a single integer for 1 qubit or a list of qubits and a list of QubitProperties objects will be returned in the same order

Returns:

The QubitProperties object for the specified qubit. If a list of qubits is provided a list will be returned. If properties are missing for a qubit this can be None.

Raises:

NotImplementedError – if the backend doesn’t support querying the qubit properties

Return type:

QubitProperties | List[QubitProperties]

run(run_input, **run_options)

Add noise pass to all circuits and then run the circuits.

Parameters:

• run_input (List[QuantumCircuit]) – List of circuit to run.

• run_options (kwargs) – additional run time backend options.

Returns:

A job that contains the simulated data.

Return type:

AerJob

set_max_qubits(max_qubits)

Set maximun number of qubits to be used for this backend.

set_option(key, value)

Special handling for setting backend options.

This method should be extended by sub classes to update special option values.

Parameters:

• key (str) – key to update

• value (any) – value to update.

Raises:

AerError – if key is ‘method’ and val isn’t in available methods.

set_options(**fields)

Set the simulator options

status()

Return backend status.

Returns:

the status of the backend.

Return type:

BackendStatus