MachineModel

class MachineModel(num_qudits, coupling_graph=None, gate_set=None, radixes=[])[source]

Bases: object

A model of a quantum processing unit.

__init__(num_qudits, coupling_graph=None, gate_set=None, radixes=[])[source]

MachineModel Constructor.

Parameters:

num_qudits (int) – The total number of qudits in the machine.
coupling_graph (Iterable[tuple[int, int]] | CouplingGraph | None) – A coupling graph describing which pairs of qudits can interact. Given as an undirected edge set. If left as None, then an all-to-all coupling graph is used as a default. (Default: None)
gate_set (GateSet | Iterable[Gate] | Gate | None) – The native gate set available on the machine. If left as None, the default gate set will be used. See default_gate_set().
radixes (Sequence[int]) – A sequence with its length equal to num_qudits. Each element specifies the base of a qudit. Defaults to qubits.

Raises:

ValueError – If num_qudits is nonpositive.

Note

Pre-built models for many active QPUs exist in the ext package.

Methods

`get_locations`(block_size)	Return all block_size connected blocks of qudit indicies.
`is_compatible`(circuit[, placement])	Check if a circuit is compatible with this model.