qml.operation.enable_new_opmath

enable_new_opmath(warn=True)

Change dunder methods to return arithmetic operators instead of Hamiltonians and Tensors

Warning

Using legacy operator arithmetic is deprecated, and will be removed in PennyLane v0.40. For further details, see Updated Operators.

Parameters

warn (bool) – Whether or not to emit a warning for re-enabling new opmath. Default is True.

Example

>>> qml.operation.active_new_opmath()
False
>>> type(qml.X(0) @ qml.Z(1))
<class 'pennylane.operation.Tensor'>
>>> qml.operation.enable_new_opmath()
>>> type(qml.X(0) @ qml.Z(1))
<class 'pennylane.ops.op_math.prod.Prod'>

code/api/pennylane.operation.enable_new_opmath

 

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