qml.noise.op_eq

op_eq(ops)

Builds a conditional as a BooleanFn for evaluating if a given operation is equal to the specified operation.

Parameters:

ops (str, class, Operation, MeasurementProcess) – String representation, an instance or class of the operation, or a measurement process.

Returns:

A callable object that accepts an Operation or MeasurementProcess and returns a boolean output. For an input from: Union[str, class, Operation] it evaluates to True if the input operations are equal to the operations specified by ops. For a MeasurementProcess input, similar evaluation happens on its observable. In both cases, the comparison is based on the operation’s type, irrespective of wires.

Return type:

OpEq

Example

One may use op_eq with a string representation of the name of the operation:

>>> cond_func = qml.noise.op_eq("RX")
>>> cond_func(qml.RX(1.23, wires=[0]))
True

>>> cond_func(qml.RZ(1.23, wires=[3]))
False

>>> cond_func("CNOT")
False

Additionally, an instance of Operation can also be provided:

>>> cond_func = qml.noise.op_eq(qml.RX(1.0, "dino"))
>>> cond_func(qml.RX(1.23, wires=["eve"]))
True

>>> cond_func(qml.RY(1.23, wires=["dino"]))
False

code/api/pennylane.noise.op_eq

 

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