def test_qubits_2_py_h2(self): """ qubits 2 py h2 test """ num_particles = (1, 1) converter = QubitConverter(ParityMapper(), two_qubit_reduction=True) converter.force_match(num_particles=num_particles) state = HartreeFock(4, num_particles, converter) ref = QuantumCircuit(2) ref.x(0) self.assertEqual(state, ref)
def test_qubits_6_py_lih(self): """ qubits 6 py lih test """ num_particles = (1, 1) converter = QubitConverter(ParityMapper(), two_qubit_reduction=True) z2symmetries = Z2Symmetries( symmetries=[Pauli('ZIZIZIZI'), Pauli('ZZIIZZII')], sq_paulis=[Pauli('IIIIIIXI'), Pauli('IIIIIXII')], sq_list=[2, 3], tapering_values=[1, 1], ) converter.force_match(num_particles=num_particles, z2symmetries=z2symmetries) state = HartreeFock(10, num_particles, converter) ref = QuantumCircuit(6) ref.x([0, 1]) self.assertEqual(state, ref)
def test_mapping_basic(self): """ Test mapping to qubit operator """ mapper = JordanWignerMapper() qubit_conv = QubitConverter(mapper) qubit_op = qubit_conv.convert(self.h2_op) self.assertIsInstance(qubit_op, PauliSumOp) # Note: The PauliSumOp equals, as used in the test below, use the equals of the # SparsePauliOp which in turn uses np.allclose() to determine equality of # coeffs. So the reference operator above will be matched on that basis so # we don't need to worry about tiny precision changes for any reason. self.assertEqual(qubit_op, TestQubitConverter.REF_H2_JW) with self.subTest('Re-use test'): qubit_op = qubit_conv.convert(self.h2_op) self.assertEqual(qubit_op, TestQubitConverter.REF_H2_JW) with self.subTest('convert_match()'): qubit_op = qubit_conv.convert_match(self.h2_op) self.assertEqual(qubit_op, TestQubitConverter.REF_H2_JW) with self.subTest('Re-use with different mapper'): qubit_conv.mapper = ParityMapper() qubit_op = qubit_conv.convert(self.h2_op) self.assertEqual(qubit_op, TestQubitConverter.REF_H2_PARITY) with self.subTest('Set two qubit reduction - no effect without num particles'): qubit_conv.two_qubit_reduction = True qubit_op = qubit_conv.convert_match(self.h2_op) self.assertEqual(qubit_op, TestQubitConverter.REF_H2_PARITY) with self.subTest('Force match set num particles'): qubit_conv.force_match(self.num_particles) qubit_op = qubit_conv.convert_match(self.h2_op) self.assertEqual(qubit_op, TestQubitConverter.REF_H2_PARITY_2Q_REDUCED)