def test_2q_local_invariance_simple(self):
"""Check the local invariance parameters
for known simple cases.
"""
sim = UnitarySimulatorPy()
qr = QuantumRegister(2, name='q')
qc = QuantumCircuit(qr)
U = execute(qc, sim).result().get_unitary()
vec = two_qubit_local_invariants(U)
assert_allclose(vec, [1, 0, 3])
qr = QuantumRegister(2, name='q')
qc = QuantumCircuit(qr)
qc.cx(qr[1], qr[0])
U = execute(qc, sim).result().get_unitary()
vec = two_qubit_local_invariants(U)
assert_allclose(vec, [0, 0, 1])
qr = QuantumRegister(2, name='q')
qc = QuantumCircuit(qr)
qc.cx(qr[1], qr[0])
qc.cx(qr[0], qr[1])
U = execute(qc, sim).result().get_unitary()
vec = two_qubit_local_invariants(U)
assert_allclose(vec, [0, 0, -1])
qr = QuantumRegister(2, name='q')
qc = QuantumCircuit(qr)
qc.swap(qr[1], qr[0])
U = execute(qc, sim).result().get_unitary()
vec = two_qubit_local_invariants(U)
assert_allclose(vec, [-1, 0, -3])
def test_circuit_on_fake_backend(self, backend, optimization_level):
if not HAS_AER and backend.configuration().num_qubits > 20:
self.skipTest('Unable to run fake_backend %s without qiskit-aer' %
backend.configuration().backend_name)
job = execute(self.circuit,
backend,
optimization_level=optimization_level,
seed_simulator=42,
seed_transpiler=42)
result = job.result()
counts = result.get_counts()
max_count = max(counts.items(), key=operator.itemgetter(1))[0]
self.assertEqual(max_count, '11')
def test_circuit_on_fake_legacy_backend(self, backend, optimization_level):
if not optionals.HAS_AER and backend.configuration().num_qubits > 20:
self.skipTest("Unable to run fake_backend %s without qiskit-aer" %
backend.configuration().backend_name)
with self.assertWarns(DeprecationWarning):
job = execute(
self.circuit,
backend,
optimization_level=optimization_level,
seed_simulator=42,
seed_transpiler=42,
)
result = job.result()
counts = result.get_counts()
max_count = max(counts.items(), key=operator.itemgetter(1))[0]
self.assertEqual(max_count, "11")
