AbelianGrouper

class qiskit.opflow.converters.AbelianGrouper(traverse=True)

기반 클래스: ConverterBase

Deprecated: The AbelianGrouper converts SummedOps into a sum of Abelian sums.

Meaning, it will traverse the Operator, and when it finds a SummedOp, it will evaluate which of the summed sub-Operators commute with one another. It will then convert each of the groups of commuting Operators into their own SummedOps, and return the sum-of-commuting-SummedOps. This is particularly useful for cases where mutually commuting groups can be handled similarly, as in the case of Pauli Expectations, where commuting Paulis have the same diagonalizing circuit rotation, or Pauli Evolutions, where commuting Paulis can be diagonalized together.

버전 0.24.0부터 폐지됨: The class qiskit.opflow.converters.abelian_grouper.AbelianGrouper is deprecated as of qiskit-terra 0.24.0. It will be removed no earlier than 3 months after the release date. For code migration guidelines, visit https://qisk.it/opflow_migration.

매개변수:

traverse (bool) – Whether to convert only the Operator passed to convert, or traverse down that Operator.

Methods

convert(operator)

Check if operator is a SummedOp, in which case covert it into a sum of mutually commuting sums, or if the Operator contains sub-Operators and traverse is True, attempt to convert any sub-Operators.

매개변수:

operator (OperatorBase) – The Operator to attempt to convert.

반환:

The converted Operator.

반환 형식:

OperatorBase

classmethod group_subops(list_op)

Given a ListOp, attempt to group into Abelian ListOps of the same type.

매개변수:

list_op (ListOp | PauliSumOp) – The Operator to group into Abelian groups

반환:

The grouped Operator.

예외 발생:

OpflowError – If any of list_op’s sub-ops is not PauliOp.

반환 형식:

ListOp