from qiskit_nature.second_q.algorithms import VQEUCCFactory solver_factory = VQEUCCFactory(Estimator(), UCCSD(), SLSQP()) solver = solver_factory.get_solver(problem, mapper) result = solver.compute_minimum_eigenvalue(qubit_op, aux_ops) print(f"Eigenvalue = {result.eigenvalue: .6f}") .....
". Instead you should use the new primitives based VQE with the Qiskit IBM Runtime " "Estimator primitive. For more details on how to migrate check out this guide, " "here: https://qisk.it/algo_migration#vqe" ), ) with warnings.catch_warnings(): warnings.simplefilter("ignore") super...
from qiskit.primitives import Estimator from qiskit_nature.second_q.algorithms import GroundStateEigensolver, VQEUCCFactory from qiskit_nature.second_q.circuit.library import UCCSD from qiskit_nature.second_q.mappers import ParityMapper, QubitConverter from qiskit_nature_pyscf import QiskitSolver mol =...
"To define the VQE solver one needs three essential elements:\n", "\n", "1. An Estimator primitive: these were released as part of Qiskit Terra 0.22. To learn more about primitives, check out [this resource](https://qiskit.org/documentation/apidoc/primitives.html).\n", "1. An Estimat...
estimator: BaseEstimator, 3 changes: 2 additions & 1 deletion 3 qiskit_algorithms/gradients/spsa/spsa_sampler_gradient.py Original file line numberDiff line numberDiff line change @@ -1,6 +1,6 @@ # This code is part of a Qiskit project. # # (C) Copyright IBM 2022, 2023. # (C) ...
UCCSD updated so the excitation pool can be managed by an adaptive algorithm like VQEAdapt. (#685) Deprecate Declarative JSON API. (#720) Added Ability to create a CustomCircuitOracle object with a callback for evaluate_classically, which a Grover object will now check for, upon initialization...
circuits circuits.rst gates gates.rst components components.rst eigs eigs.rst feaure_maps feature_maps.rst initial_states initial_states.rst iqfts iqfts.rst multiclass_extensions multiclass_extensions.rst neural_networks neural_networks.rst optimizers optimizers.rst oracles ...
solver = VQEUCCFactory(Estimator(), UCCSD(), SLSQP()) calc = GroundStateEigensolver(self.qubit_converter, solver) res = calc.solve(self.electronic_structure_problem) # pylint: disable=no-member np.testing.assert_array_equal(solver.initial_point.to_numpy_array(), [0.0, 0.0, 0.0]) self....
solver = VQEUCCFactory(Estimator(), UCCSD(), SLSQP(), initial_point=initial_point) calc = GroundStateEigensolver(self.qubit_converter, solver) res = calc.solve(self.electronic_structure_problem) # pylint: disable=no-member np.testing.assert_array_almost_equal( solver.initial_point.to_numpy_...
solver = VQEUCCFactory(Estimator(), UCCSD(), SLSQP(), initial_point=initial_point) calc = GroundStateEigensolver(self.qubit_converter, solver) res = calc.solve(self.electronic_structure_problem) # pylint: disable=no-member np.testing.assert_array_almost_equal( solver.initial_point.to_numpy_...