qml.measurements.MeasurementValue

class MeasurementValue(measurements, processing_fn)

Bases: Generic[pennylane.measurements.mid_measure.T]

A class representing unknown measurement outcomes in the qubit model.

Measurements on a single qubit in the computational basis are assumed.

Parameters

• measurements (list[MidMeasureMP]) – The measurement(s) that this object depends on.

• processing_fn (callable) – A lazily transformation applied to the measurement values.

Attributes

branches	A dictionary representing all possible outcomes of the MeasurementValue.
name
wires	Returns a list of wires corresponding to the mid-circuit measurements.

branches

A dictionary representing all possible outcomes of the MeasurementValue.

name = 'MeasurementValue'

wires

Returns a list of wires corresponding to the mid-circuit measurements.

Methods

concretize(measurements)	Returns a concrete value from a dictionary of hashes with concrete values.
map_wires(wire_map)	Returns a copy of the current MeasurementValue with the wires of each measurement changed according to the given wire map.

concretize(measurements)

Returns a concrete value from a dictionary of hashes with concrete values.

map_wires(wire_map)

Returns a copy of the current MeasurementValue with the wires of each measurement changed according to the given wire map.

Parameters

wire_map (dict) – dictionary containing the old wires as keys and the new wires as values

Returns

new MeasurementValue instance with measurement wires mapped

Return type

MeasurementValue

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