def test_vqe_mes(self):
""" Test VQEUCCSDFactory with QEOM """
solver = VQEUCCSDFactory(self.quantum_instance)
gsc = GroundStateEigensolver(self.transformation, solver)
esc = QEOM(gsc, 'sd')
results = esc.solve(self.driver)
for idx, _ in enumerate(self.reference_energies):
self.assertAlmostEqual(results.computed_energies[idx], self.reference_energies[idx],
places=4)
def test_numpy_mes(self):
""" Test NumPyMinimumEigenSolver with QEOM """
solver = NumPyMinimumEigensolver()
gsc = GroundStateEigensolver(self.transformation, solver)
esc = QEOM(gsc, 'sd')
results = esc.solve(self.driver)
for idx, _ in enumerate(self.reference_energies):
self.assertAlmostEqual(results.computed_energies[idx], self.reference_energies[idx],
places=4)
def test_numpy_mes(self):
""" Test with NumPyMinimumEigensolver """
solver = NumPyMinimumEigensolverFactory(
use_default_filter_criterion=True)
gsc = GroundStateEigensolver(self.transformation, solver)
esc = QEOM(gsc, 'sd')
results = esc.solve(self.driver)
for idx, _ in enumerate(self.reference_energies):
self.assertAlmostEqual(results.computed_vibronic_energies[idx],
self.reference_energies[idx],
places=4)
def test_vqe_uvccsd_factory(self):
""" Test with VQE plus UVCCSD """
optimizer = COBYLA(maxiter=5000)
solver = VQEUVCCSDFactory(QuantumInstance(
BasicAer.get_backend('statevector_simulator')),
optimizer=optimizer)
gsc = GroundStateEigensolver(self.transformation, solver)
esc = QEOM(gsc, 'sd')
results = esc.solve(self.driver)
for idx, _ in enumerate(self.reference_energies):
self.assertAlmostEqual(results.computed_vibronic_energies[idx],
self.reference_energies[idx],
places=0)