qiskit.aqua.algorithms.MinimumEigensolver¶

class MinimumEigensolver[source]¶

The Minimum Eigensolver Interface.

Algorithms that can compute a minimum eigenvalue for an operator may implement this interface to allow different algorithms to be used interchangeably.

__init__()¶: Initialize self. See help(type(self)) for accurate signature.

Methods

`__init__`()	Initialize self.
`compute_minimum_eigenvalue`([operator, …])	Computes minimum eigenvalue.
`supports_aux_operators`()	Whether computing the expectation value of auxiliary operators is supported.

Attributes

`aux_operators`	Returns the auxiliary operators.
`operator`	Return the operator.

abstract property aux_operators¶

Returns the auxiliary operators.

Type renvoyé: Optional[List[Optional[OperatorBase]]]

abstract compute_minimum_eigenvalue(operator=None, aux_operators=None)[source]¶

Computes minimum eigenvalue. Operator and aux_operators can be supplied here and if not None will override any already set into algorithm so it can be reused with different operators. While an operator is required by algorithms, aux_operators are optional. To “remove” a previous aux_operators array use an empty list here.

Paramètres

operator (Union[OperatorBase, LegacyBaseOperator, None]) – If not None replaces operator in algorithm
aux_operators (Optional[List[Union[OperatorBase, LegacyBaseOperator, None]]]) – If not None replaces aux_operators in algorithm

Type renvoyé

MinimumEigensolverResult

Renvoie

MinimumEigensolverResult

abstract property operator¶

Return the operator.

Type renvoyé: Union[OperatorBase, LegacyBaseOperator, None]

classmethod supports_aux_operators()[source]¶

Whether computing the expectation value of auxiliary operators is supported.

If the minimum eigensolver computes an eigenstate of the main operator then it can compute the expectation value of the aux_operators for that state. Otherwise they will be ignored.

Type renvoyé: bool
Renvoie: True if aux_operator expectations can be evaluated, False otherwise