PropagateLocalPauliNode

class samplomatic.samplex.nodes.PropagateLocalPauliNode(op_name: str, register_name: str, subsystem_idxs: Sequence[Sequence[int]], *, lookup_table: ndarray | None = None)

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Bases: EvaluationNode

A node that propagates a Pauli register past a gate.

Only Paulis from the commutant of the gate generators (those that commute with the gate for any angle) are allowed through. Non-commutant Paulis trigger a runtime error.

Parameters

register_name – The name of the Pauli register to propagate.
subsystem_idxs – The subsystems in the register specified as a 2D array where the left-most axes is over subsystems and the right-most axes is over indices in the subsystem.
op_name – The name of the gate operation.

Attributes Summary

Column 1	Column 2
`outgoing_register_type`	The virtual gate type of outgoing registers.

Methods Summary

Column 1	Column 2
`evaluate`(registers, *_)	Evaluate this node.
`get_style`()	Return the style of this node when plotted.
`reads_from`()	Return a manifest of which virtual register values this node needs to read from.
`writes_to`()	Return a manifest of which virtual register values this node needs to write to.

Attributes Documentation

outgoing_register_type

Methods Documentation

evaluate

evaluate(registers, *_)

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Evaluate this node.

Parameters

registers – At least those registers needed by this node to read from or write to.
parameter_values – Parameter values to use during evaluation.

Raises

SamplexRuntimeError – If the number of parameter values received does not equal the number required by this node.