Skip to main contentIBM Quantum Documentation Mirror

DAGOpNode

class qiskit.dagcircuit.DAGOpNode

Bases: DAGNode

Object to represent an Instruction at a node in the DAGCircuit.


Attributes

cargs

condition

definition

duration

label

matrix

name

Returns the Instruction name corresponding to the op for this node

num_clbits

num_qubits

op

params

qargs

sort_key

unit


Methods

from_instruction

static from_instruction(instruction, /, *, dag=None, deepcopy=False)

is_control_flow

is_control_flow()

Is the Operation contained in this node a control-flow operation (i.e. an instance of ControlFlowOp)?

is_controlled_gate

is_controlled_gate()

Is the Operation contained in this node a subclass of ControlledGate?

is_directive

is_directive()

Is the Operation contained in this node a directive?

is_parameterized

is_parameterized()

Does this node contain any ParameterExpression parameters?

is_standard_gate

is_standard_gate()

Is the Operation contained in this node a Qiskit standard gate?

semantic_eq

static semantic_eq(node1, node2, bit_indices1, bit_indices2)

GitHub(opens in a new tab)

Check if DAG nodes are considered equivalent, e.g., as a node_match for rustworkx.is_isomorphic_node_match()(opens in a new tab).

Parameters

Returns

If node1 == node2

Return type

Bool