NumPyMinimumEigensolverFactory¶

class NumPyMinimumEigensolverFactory(filter_criterion=None, use_default_filter_criterion=False)[source]¶

Bases: qiskit.chemistry.algorithms.ground_state_solvers.minimum_eigensolver_factories.minimum_eigensolver_factory.MinimumEigensolverFactory

A factory to construct a NumPyMinimumEigensolver.

Parameters

filter_criterion (Optional[Callable[[Union[List, ndarray], float, Optional[List[float]]], bool]]) – callable that allows to filter eigenvalues/eigenstates. The minimum eigensolver is only searching over feasible states and returns an eigenstate that has the smallest eigenvalue among feasible states. The callable has the signature filter(eigenstate, eigenvalue, aux_values) and must return a boolean to indicate whether to consider this value or not. If there is no feasible element, the result can even be empty.
use_default_filter_criterion (bool) – whether to use the transformation’s default filter criterion if filter_criterion is None.

Methods

`get_solver`	Returns a NumPyMinimumEigensolver which possibly uses the default filter criterion provided by the `transformation`.
`supports_aux_operators`	Returns whether the eigensolver generated by this factory supports auxiliary operators.

Attributes

filter_criterion¶

returns filter criterion

Return type: Callable[[Union[List, ndarray], float, Optional[List[float]]], bool]

use_default_filter_criterion¶

returns whether to use the default filter criterion