qml.is_commuting

is_commuting(operation1, operation2)

Check if two operations are commuting using a lookup table.

A lookup table is used to check the commutation between the controlled, targeted part of operation 1 with the controlled, targeted part of operation 2.

Note

Most qubit-based PennyLane operations are supported — CV operations are not supported at this time.

Unsupported qubit-based operations include:

PauliRot, QubitDensityMatrix, CVNeuralNetLayers, ApproxTimeEvolution, ArbitraryUnitary, CommutingEvolution, DisplacementEmbedding, SqueezingEmbedding Exp

Parameters:

• operation1 (.Operation) – A first quantum operation.

• operation2 (.Operation) – A second quantum operation.

Returns:

True if the operations commute, False otherwise.

Return type:

bool

Example

>>> qml.is_commuting(qml.X(0), qml.Z(0))
False

code/api/pennylane.is_commuting

 

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