def test_expand(self):
"""test tensor product of unitaries with reverse order"""
sx = [[0, 1], [1, 0]]
sy = [[0, -1j], [1j, 0]]
ymat = numpy.kron(sy, numpy.kron(sy, sx))
ux = Unitary(sx)
uy = Unitary(sy)
result = ux.expand(uy.expand(uy))
xmat = result._representation
self.assertTrue(numpy.array_equal(xmat, ymat))
def test_compose(self):
"""test unitary composition"""
sx = numpy.array([[0, 1], [1, 0]])
sy = numpy.array([[0, -1j], [1j, 0]])
ymat = sx @ sy
ux = Unitary(sx)
uy = Unitary(sy)
result = ux.compose(uy)
xmat = result._representation
self.assertTrue(numpy.array_equal(xmat, ymat))
def test_tensor(self):
"""test tensor product of unitaries"""
sx = [[0, 1], [1, 0]]
sy = [[0, -1j], [1j, 0]]
ymat = numpy.kron(sx, numpy.kron(sy, sy))
ux = Unitary(sx)
uy = Unitary(sy)
result = ux.tensor(uy.tensor(uy))
xmat = result._representation
self.assertTrue(numpy.array_equal(xmat, ymat))
def test_2q_unitary(self):
"""test 2 qubit unitary matrix"""
backend = BasicAer.get_backend('qasm_simulator')
qr = QuantumRegister(2)
cr = ClassicalRegister(2)
qc = QuantumCircuit(qr, cr)
sigmax = numpy.array([[0, 1], [1, 0]])
sigmay = numpy.array([[0, -1j], [1j, 0]])
matrix = numpy.kron(sigmax, sigmay)
qc.x(qr[0])
uni2q = Unitary(matrix)
qc.append(uni2q, [qr[0], qr[1]])
passman = PassManager()
passman.append(CXCancellation())
qc2 = transpile(qc, backend, pass_manager=passman)
# test of qasm output
self.log.info(qc2.qasm())
# test of text drawer
self.log.info(qc2)
dag = circuit_to_dag(qc)
nodes = dag.twoQ_nodes()
self.assertTrue(len(nodes) == 1)
dnode = nodes[0]
self.assertIsInstance(dnode.op, Unitary)
for qubit in dnode.qargs:
self.assertTrue(qubit[1] in [0, 1])
self.assertTrue(numpy.allclose(dnode.op._representation, matrix))
qc3 = dag_to_circuit(dag)
self.assertEqual(qc2, qc3)
def test_conjugate_inplace(self):
"""test inplace conjugate"""
ymat = numpy.array([[0, -1j], [1j, 0]])
uni = Unitary([[0, 1j], [-1j, 0]])
uni_conj = uni.conjugate(inplace=True)
self.assertTrue(numpy.array_equal(uni._representation, ymat))
self.assertTrue(uni._representation is uni_conj._representation)
def test_set_matrix(self):
"""Test instantiation"""
try:
Unitary([[0, 1], [1, 0]])
# pylint: disable=broad-except
except Exception as err:
self.fail('unexpected exception in init of Unitary: {0}'.format(err))
def test_set_matrix_raises(self):
"""test non-unitary"""
try:
Unitary([[1, 1], [1, 0]])
# pylint: disable=broad-except
except Exception:
pass
else:
self.fail('setting Unitary with non-unitary did not raise')
def test_power(self):
"""test unitary power"""
uy = Unitary(numpy.array([[0, -1j], [1j, 0]]))
self.assertTrue(numpy.array_equal(uy.power(0).representation,
numpy.identity(2)))
self.assertTrue(numpy.array_equal(uy.power(1).representation,
uy.representation))
self.assertTrue(numpy.array_equal(uy.power(2).representation,
numpy.identity(2)))
self.assertTrue(numpy.array_equal(uy.power(-1).representation,
numpy.linalg.matrix_power(uy.representation, -1)))
def test_labeled_unitary(self):
"""test qobj output with unitary matrix"""
qr = QuantumRegister(4)
qc = QuantumCircuit(qr)
sigmax = numpy.array([[0, 1], [1, 0]])
sigmay = numpy.array([[0, -1j], [1j, 0]])
matrix = numpy.kron(sigmax, sigmay)
uni = Unitary(matrix, label='xy')
qc.append(uni, [qr[0], qr[1]])
qobj = qiskit.compiler.assemble_circuits(qc)
instr = qobj.experiments[0].instructions[0]
self.assertEqual(instr.name, 'unitary')
self.assertEqual(instr.label, 'xy')
def test_1q_unitary(self):
"""test 1 qubit unitary matrix"""
qr = QuantumRegister(1)
cr = ClassicalRegister(1)
qc = QuantumCircuit(qr, cr)
matrix = numpy.array([[1, 0], [0, 1]])
qc.x(qr[0])
qc.append(Unitary(matrix), [qr[0]])
# test of qasm output
self.log.info(qc.qasm())
# test of text drawer
self.log.info(qc)
dag = circuit_to_dag(qc)
dag_nodes = dag.named_nodes('unitary')
self.assertTrue(len(dag_nodes) == 1)
dnode = dag_nodes[0]
self.assertIsInstance(dnode.op, Unitary)
for qubit in dnode.qargs:
self.assertTrue(qubit[1] in [0, 1])
self.assertTrue(numpy.allclose(dnode.op._representation, matrix))
def test_qobj_with_unitary_matrix(self):
"""test qobj output with unitary matrix"""
qr = QuantumRegister(4)
qc = QuantumCircuit(qr)
sigmax = numpy.array([[0, 1], [1, 0]])
sigmay = numpy.array([[0, -1j], [1j, 0]])
matrix = numpy.kron(sigmay, numpy.kron(sigmax, sigmay))
qc.rx(numpy.pi / 4, qr[0])
uni = Unitary(matrix)
qc.append(uni, [qr[0], qr[1], qr[3]])
qc.cx(qr[3], qr[2])
qobj = qiskit.compiler.assemble_circuits(qc)
instr = qobj.experiments[0].instructions[1]
self.assertEqual(instr.name, 'unitary')
self.assertTrue(
numpy.allclose(
numpy.array(instr.params).astype(numpy.complex64), matrix))
# check conversion to dict
qobj_dict = qobj.as_dict()
# check json serialization
self.assertTrue(isinstance(json.dumps(qobj_dict), str))
def test_3q_unitary(self):
"""test 3 qubit unitary matrix on non-consecutive bits"""
qr = QuantumRegister(4)
qc = QuantumCircuit(qr)
sigmax = numpy.array([[0, 1], [1, 0]])
sigmay = numpy.array([[0, -1j], [1j, 0]])
matrix = numpy.kron(sigmay, numpy.kron(sigmax, sigmay))
qc.x(qr[0])
uni3q = Unitary(matrix)
qc.append(uni3q, [qr[0], qr[1], qr[3]])
qc.cx(qr[3], qr[2])
# test of text drawer
self.log.info(qc)
dag = circuit_to_dag(qc)
nodes = dag.threeQ_or_more_nodes()
self.assertTrue(len(nodes) == 1)
dnode = nodes[0]
self.assertIsInstance(dnode.op, Unitary)
for qubit in dnode.qargs:
self.assertTrue(qubit[1] in [0, 1, 3])
self.assertTrue(numpy.allclose(dnode.op._representation, matrix))
def test_adjoint(self):
"""test adjoint operation"""
uni = Unitary([[0, 1j], [-1j, 0]])
self.assertTrue(
numpy.array_equal(uni.adjoint()._representation,
uni._representation))
def test_conjugate(self):
"""test conjugate"""
ymat = numpy.array([[0, -1j], [1j, 0]])
uni = Unitary([[0, 1j], [-1j, 0]])
self.assertTrue(
numpy.array_equal(uni.conjugate()._representation, ymat))
def test_set_init_with_unitary(self):
"""test instantiation of new unitary with another one (copy)"""
uni1 = Unitary([[0, 1], [1, 0]], validate=False, rtol=1e-2, atol=1e-2)
uni2 = Unitary(uni1)
self.assertTrue(uni1 == uni2)
self.assertFalse(uni1 is uni2)