IQMBackendBase

Module: iqm.qiskit_iqm.iqm_backend

class iqm.qiskit_iqm.iqm_backend.IQMBackendBase(architecture: DynamicQuantumArchitecture, *, metrics: ObservationFinder | None = None, name: str = 'IQMBackend', **kwargs)

Bases: BackendV2, ABC

Abstract base class for various IQM-specific backends.

Parameters:

• architecture (DynamicQuantumArchitecture) – Dynamic quantum architecture associated with the backend instance.

• metrics (ObservationFinder | None) – Optional calibration data and related quality metrics for the transpilation target.

• name (str) – Optional name for the backend instance.

Attributes

max_circuits	Maximum number of circuits for a single job.
physical_qubits	Return the list of physical qubits in the backend.
target	Return the target without computational resonators.
target_with_resonators	Return the target with MOVE gates and resonators included.
name	Name of the backend.
description	Optional human-readable description.
online_date	Date that the backend came online.
backend_version	Version of the backend being provided.

Methods

get_real_target	Return the real physical target of the backend without fictional CZ gates.
get_scheduling_stage_plugin	Return the plugin that should be used for scheduling the circuits on this backend.
has_resonators	True iff the backend QPU has computational resonators.
index_to_qubit_name	Given a quantum register index, return the corresponding IQM-style qubit name.
qubit_name_to_index	Given an IQM-style qubit name, return the corresponding index in the register.
run	Run (or simulate) the execution of quantum circuit(s).

property target: Target

Return the target without computational resonators.

property target_with_resonators: Target

Return the target with MOVE gates and resonators included.

Raises:

ValueError – The backend does not have resonators.

property physical_qubits: list[str]

Return the list of physical qubits in the backend.

has_resonators() → bool

True iff the backend QPU has computational resonators.

Return type:

bool

get_real_target() → Target

Return the real physical target of the backend without fictional CZ gates.

Return type:

Target

qubit_name_to_index(name: str) → int

Given an IQM-style qubit name, return the corresponding index in the register.

Parameters:

name (str) – IQM-style qubit name (‘QB1’, ‘QB2’, etc.)

Returns:

Index of the given qubit in the quantum register.

Raises:

ValueError – Qubit name cannot be found on the backend.

Return type:

int

index_to_qubit_name(index: int) → str

Given a quantum register index, return the corresponding IQM-style qubit name.

Parameters:

index (int) – Qubit index in the quantum register.

Returns:

Corresponding IQM-style qubit name (‘QB1’, ‘QB2’, etc.).

Raises:

ValueError – Qubit index cannot be found on the backend.

Return type:

str

get_scheduling_stage_plugin() → str

Return the plugin that should be used for scheduling the circuits on this backend.

Return type:

str

property max_circuits: int | None

Maximum number of circuits for a single job.

None means unlimited.

abstractmethod run(run_input: QuantumCircuit | list[QuantumCircuit], **options) → JobV1

Run (or simulate) the execution of quantum circuit(s).

Note that the return type is JobV1, not IQMJob, since this is what IQMFakeBackend produces.

Parameters:

run_input (QuantumCircuit | list[QuantumCircuit])

Return type:

JobV1

Inheritance