def test_append_readout_error(self):
qc = QuantumCircuit(1)
qc.h(0)
def out_readout_error(op, qubits):
return ReadoutError([[1, 0], [0, 1]])
noise_pass = LocalNoisePass(func=out_readout_error, op_types=HGate)
with self.assertRaises(TranspilerError):
noise_pass(qc)
def test_replace_noise(self):
qc = QuantumCircuit(2)
qc.sx(0)
qc.sx(1)
def func(op, qubits):
if tuple(qubits) == (1,):
return HGate()
return None
noise_pass = LocalNoisePass(func=func, op_types=SXGate, method="replace")
actual = noise_pass(qc)
expected = QuantumCircuit(2)
# sx(0) is removed since func returns None for sx(0)
expected.h(1) # sx(1) is replaced with h(1)
self.assertEqual(expected, actual)
def test_append_circuit(self):
qc = QuantumCircuit(2)
qc.cx(0, 1)
def composite_error(op, qubits):
circ = QuantumCircuit(2)
for q in qubits:
circ.x(q)
return circ
noise_pass = LocalNoisePass(func=composite_error, op_types=CXGate)
noise_qc = noise_pass(qc)
expected = QuantumCircuit(2)
expected.cx(0, 1)
expected.x(0)
expected.x(1)
self.assertEqual(expected, noise_qc)
def test_append_noise(self):
qc = QuantumCircuit(2)
qc.sx(0)
qc.sx(1)
def func(op, qubits):
if tuple(qubits) == (1,):
return HGate()
return None
noise_pass = LocalNoisePass(func=func, op_types=SXGate, method="append")
actual = noise_pass(qc)
expected = QuantumCircuit(2)
expected.sx(0) # do nothing for sx(0)
expected.sx(1)
expected.h(1) # add H after sx(1)
self.assertEqual(expected, actual)