qml.measurements.MeasurementValue¶

class MeasurementValue(measurements, processing_fn)[source]¶

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.

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

`concretize`(measurements)	Returns a concrete value from a dictionary of hashes with concrete values.
`items`()	A generator representing all the possible outcomes of the MeasurementValue.
`map_wires`(wire_map)	Returns a copy of the current `MeasurementValue` with the wires of each measurement changed according to the given wire map.
`postselected_items`()	A generator representing all the possible outcomes of the MeasurementValue, taking postselection into account.

concretize(measurements)[source]¶: Returns a concrete value from a dictionary of hashes with concrete values.

items()[source]¶: A generator representing all the possible outcomes of the MeasurementValue.

map_wires(wire_map)[source]¶

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

postselected_items()[source]¶: A generator representing all the possible outcomes of the MeasurementValue, taking postselection into account.