quri_parts.core.measurement package#
- quri_parts.core.measurement.PauliMeasurementCircuitGeneration#
PauliMeasurementCircuitGeneration represents a function that generates a circuit (a gate list) for measuring mutually commuting Pauli operators.
alias of
Callable[[Set[PauliLabel]],Sequence[QuantumGate]]
- quri_parts.core.measurement.PauliReconstructor#
PauliReconstructor represents a function that reconstructs a value of a Pauli operator from a measurement result of its measurement circuit.
alias of
Callable[[int],int]
- quri_parts.core.measurement.PauliReconstructorFactory#
PauliReconstructorFactory represents a factory function that returns a
PauliReconstructorfor a given Pauli operator.alias of
Callable[[PauliLabel],Callable[[int],int]]
- class quri_parts.core.measurement.CommutablePauliSetMeasurement(*args, **kwargs)#
Bases:
ProtocolRepresents a measurement scheme for a set of commutable Pauli operators.
- abstract property pauli_set: Set[PauliLabel]#
A set of commutable Pauli operators subject to the measurement.
- abstract property measurement_circuit: Sequence[QuantumGate]#
A circuit required to measure the given commutable Pauli operators at once.
- abstract property pauli_reconstructor_factory: Callable[[PauliLabel], Callable[[int], int]]#
A factory of
PauliReconstructorthat reconstructs a value of a Pauli operator from a measurement result of the measurement circuit.
- class quri_parts.core.measurement.CommutablePauliSetMeasurementTuple(pauli_set, measurement_circuit, pauli_reconstructor_factory)#
Bases:
NamedTuple- pauli_set: Set[PauliLabel]#
Alias for field number 0
- measurement_circuit: Sequence[QuantumGate]#
Alias for field number 1
- pauli_reconstructor_factory: Callable[[PauliLabel], Callable[[int], int]]#
Alias for field number 2
- quri_parts.core.measurement.CommutablePauliSetMeasurementFactory#
Represents a function that performs grouping of Pauli operators into groups of commutable Pauli operators and returns measurement schemes for them.
alias of
Callable[[Union[Operator,Iterable[PauliLabel]]],Iterable[CommutablePauliSetMeasurement]]
- quri_parts.core.measurement.bitwise_commuting_pauli_measurement_circuit(pauli_set: Set[PauliLabel]) Sequence[QuantumGate]#
An implementation of
PauliMeasurementCircuitGeneration, which generates a circuit (a gate list) for a “trivial” measurement of bitwise- commuting Pauli strings.The “trivial” measurement of a Pauli string refers to a measurement in computational basis preceded by single qubit rotations to map each Pauli matrix on each qubit to \(Z\). For example, if the Pauli string contains \(X\) (\(Y\)) at a qubit index \(i\), then (an \(S^\dagger\) gate and) an Hadamard gate is applied on the qubit \(i\) before performing the \(Z\) measurements on all qubits.
- quri_parts.core.measurement.bitwise_pauli_reconstructor_factory(pauli: PauliLabel) Callable[[int], int]#
A factory of a function that reconstructs a value of the given Pauli operator from a result of a “trivial” measurement of bitwise-commuting Pauli strings.
The “trivial” measurement of a Pauli string refers to a measurement in computational basis preceded by single qubit rotations to map each Pauli matrix on each qubit to \(Z\). For example, if the Pauli string contains \(X\) (\(Y\)) at a qubit index \(i\), then (an \(S^\dagger\) gate and) an Hadamard gate is applied on the qubit \(i\) before performing the \(Z\) measurements on all qubits.
- quri_parts.core.measurement.bitwise_commuting_pauli_measurement(paulis: Operator | Iterable[PauliLabel]) Collection[CommutablePauliSetMeasurement]#
Groups the given Pauli operators into sets of bitwise commuting Pauli operators and returns measurement schemes for them.
- quri_parts.core.measurement.individual_pauli_measurement(paulis: Operator | Iterable[PauliLabel]) Collection[CommutablePauliSetMeasurement]#
Returns measurement schemes for Pauli operators where each operator is measured individually (i.e. no grouping).