Código fuente para qiskit_nature.second_q.algorithms.initial_points.initial_point

# This code is part of a Qiskit project.
# (C) Copyright IBM 2022, 2023.
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
# Any modifications or derivative works of this code must retain this
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"""The initial point interface."""

from __future__ import annotations

from abc import ABC, abstractmethod

import numpy as np

from qiskit.circuit.library import EvolvedOperatorAnsatz
from qiskit_nature.second_q.problems import BaseProblem

[documentos]class InitialPoint(ABC): r"""The initial point interface. The interface for utility classes that provide an initial point for the ``VQE`` parameters for a particular ``EvolvedOperatorAnsatz``. """ @abstractmethod def __init__(self) -> None: self._ansatz: EvolvedOperatorAnsatz | None = None self._problem: BaseProblem | None = None @property @abstractmethod def ansatz(self) -> EvolvedOperatorAnsatz | None: """The evolved operator ansatz. Raises: NotImplementedError """ raise NotImplementedError @ansatz.setter def ansatz(self, ansatz: EvolvedOperatorAnsatz) -> None: raise NotImplementedError @property def problem(self) -> BaseProblem | None: """The problem. Raises: NotImplementedError """ raise NotImplementedError @problem.setter def problem(self, problem: BaseProblem) -> None: raise NotImplementedError
[documentos] @abstractmethod def to_numpy_array(self) -> np.ndarray: """Returns a NumPy array of the computed initial point. Raises: NotImplementedError """ raise NotImplementedError
[documentos] def compute( self, ansatz: EvolvedOperatorAnsatz | None = None, problem: BaseProblem | None = None, ) -> None: """Compute the initial point array.""" raise NotImplementedError