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Split2QUnitaries

class qiskit.transpiler.passes.Split2QUnitaries(*args, **kwargs)

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Bases: TransformationPass

Attempt to splits two-qubit gates in a DAGCircuit into two single-qubit gates

This pass will analyze all the two qubit gates in the circuit and analyze the gate’s unitary matrix to determine if the gate is actually a product of 2 single qubit gates. In these cases the 2q gate can be simplified into two single qubit gates and this pass will perform this optimization and will replace the two qubit gate with two single qubit UnitaryGate.

Split2QUnitaries initializer.

Parameters

fidelity (float) – Allowed tolerance for splitting two-qubit unitaries and gate decompositions


Attributes

is_analysis_pass

Check if the pass is an analysis pass.

If the pass is an AnalysisPass, that means that the pass can analyze the DAG and write the results of that analysis in the property set. Modifications on the DAG are not allowed by this kind of pass.

is_transformation_pass

Check if the pass is a transformation pass.

If the pass is a TransformationPass, that means that the pass can manipulate the DAG, but cannot modify the property set (but it can be read).


Methods

execute

execute(passmanager_ir, state, callback=None)

GitHub

Execute optimization task for input Qiskit IR.

Parameters

  • passmanager_ir (Any) – Qiskit IR to optimize.
  • state (PassManagerState) – State associated with workflow execution by the pass manager itself.
  • callback (Callable | None) – A callback function which is caller per execution of optimization task.

Returns

Optimized Qiskit IR and state of the workflow.

Return type

tuple[Any, qiskit.passmanager.compilation_status.PassManagerState]

name

name()

GitHub

Name of the pass.

Return type

str

run

run(dag)

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Run the Split2QUnitaries pass on dag.

update_status

update_status(state, run_state)

GitHub

Update workflow status.

Parameters

  • state (PassManagerState) – Pass manager state to update.
  • run_state (RunState) – Completion status of current task.

Returns

Updated pass manager state.

Return type

PassManagerState

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