AddInjectNoise

class samplomatic.transpiler.passes.AddInjectNoise(*args, **kwargs)

Bases: TransformationPass

Inserts InjectNoise annotations to all the unique boxes with twirling annotation.

This pass finds all the twirl-annotated boxes in the given circuit and adds inject noise annotations to all the boxes that contain entanglers and/or own classical registers.

Parameters:

• strategy – The noise injection strategy.

• overwrite – Whether to overwrite the ref of inject noise annotations that are already present in the circuit.

• prefix_ref – A prefix to all the ref generated by this class.

• prefix_modifier_ref – A prefix to all the modifier_refs generated by this class.

• targets –

  The class of annotated boxes to target. The supported values are:

  • 'none' to avoid annotating boxes of any kind.

  • 'gates' to target only the twirl-annotated boxes that contain entanglers.

  • 'measures' to target only the twirl-annotated boxes that own classical

    registers.

  • 'all' to target all the twirl-annotated boxes that contain entanglers

    and/or own classical registers.

Note

Every ref is generated by appending a counter to prefix_ref. The counter is shared across all the instances of this class. In order to avoid collisions, it is incremented every time that a new ref is created. The same mechanism (with a different counter) is used to generate the modifier_refs.

Methods Summary

run(dag)

Run a pass on the DAGCircuit.

Methods Documentation

run(dag: DAGCircuit) → DAGCircuit

Run a pass on the DAGCircuit. This is implemented by the pass developer.

Parameters:

dag – the dag on which the pass is run.

Raises:

NotImplementedError – when this is left unimplemented for a pass.