def _define(self):
"""
gate swap a,b { cx a,b; cx b,a; cx a,b; }
"""
definition = []
q = QuantumRegister(2, "q")
rule = [
(CX_PIGate(1), [q[1]], []),
(RZGate(pi / 2), [q[1]], []),
(CX_PIGate(1), [q[1]], []),
(CzGate(), [q[0], q[1]], []),
(CX_PIGate(1), [q[1]], []),
(RZGate(pi / 2), [q[1]], []),
(CX_PIGate(1), [q[1]], []),
(CX_PIGate(1), [q[0]], []),
(RZGate(pi / 2), [q[0]], []),
(CX_PIGate(1), [q[0]], []),
(CzGate(), [q[1], q[0]], []),
(CX_PIGate(1), [q[0]], []),
(RZGate(pi / 2), [q[0]], []),
(CX_PIGate(1), [q[0]], []),
(CX_PIGate(1), [q[1]], []),
(RZGate(pi / 2), [q[1]], []),
(CX_PIGate(1), [q[1]], []),
(CzGate(), [q[0], q[1]], []),
(CX_PIGate(1), [q[1]], []),
(RZGate(pi / 2), [q[1]], []),
(CX_PIGate(1), [q[1]], []),
]
for inst in rule:
definition.append(inst)
self.definition = definition
def test_substituting_node_preserves_name_args_condition(self, inplace):
"""Verify name, args and condition are preserved by a substitution."""
dag = DAGCircuit()
qr = QuantumRegister(2)
cr = ClassicalRegister(1)
dag.add_qreg(qr)
dag.add_creg(cr)
dag.apply_operation_back(HGate(), [qr[1]])
node_to_be_replaced = dag.apply_operation_back(CnotGate(),
[qr[1], qr[0]],
condition=(cr, 1))
node_to_be_replaced.name = 'test_name'
dag.apply_operation_back(HGate(), [qr[1]])
replacement_node = dag.substitute_node(node_to_be_replaced,
CzGate(),
inplace=inplace)
raise_if_dagcircuit_invalid(dag)
self.assertEqual(replacement_node.name, 'test_name')
self.assertEqual(replacement_node.qargs, [qr[1], qr[0]])
self.assertEqual(replacement_node.cargs, [])
self.assertEqual(replacement_node.condition, (cr, 1))
self.assertEqual(replacement_node is node_to_be_replaced, inplace)
def _define(self):
"""
gate cz a,b { h b; cx a,b; h b; }
"""
definition = []
q = QuantumRegister(2, "q")
rule = [(HGate(), [q[1]], []), (CzGate(), [q[0], q[1]], []),
(HGate(), [q[1]], [])]
for inst in rule:
definition.append(inst)
self.definition = definition
def create_dag_op(self, name, args, qubits):
"""Create a DAG op node.
"""
if name == "u0":
op = U0Gate(args[0], qubits[0])
elif name == "u1":
op = U1Gate(args[0], qubits[0])
elif name == "u2":
op = U2Gate(args[0], args[1], qubits[0])
elif name == "u3":
op = U3Gate(args[0], args[1], args[2], qubits[0])
elif name == "x":
op = XGate(qubits[0])
elif name == "y":
op = YGate(qubits[0])
elif name == "z":
op = ZGate(qubits[0])
elif name == "t":
op = TGate(qubits[0])
elif name == "tdg":
op = TdgGate(qubits[0])
elif name == "s":
op = SGate(qubits[0])
elif name == "sdg":
op = SdgGate(qubits[0])
elif name == "swap":
op = SwapGate(qubits[0], qubits[1])
elif name == "rx":
op = RXGate(args[0], qubits[0])
elif name == "ry":
op = RYGate(args[0], qubits[0])
elif name == "rz":
op = RZGate(args[0], qubits[0])
elif name == "rzz":
op = RZZGate(args[0], qubits[0], qubits[1])
elif name == "id":
op = IdGate(qubits[0])
elif name == "h":
op = HGate(qubits[0])
elif name == "cx":
op = CnotGate(qubits[0], qubits[1])
elif name == "cy":
op = CyGate(qubits[0], qubits[1])
elif name == "cz":
op = CzGate(qubits[0], qubits[1])
elif name == "ch":
op = CHGate(qubits[0], qubits[1])
elif name == "crz":
op = CrzGate(args[0], qubits[0], qubits[1])
elif name == "cu1":
op = Cu1Gate(args[0], qubits[0], qubits[1])
elif name == "cu3":
op = Cu3Gate(args[0], args[1], args[2], qubits[0], qubits[1])
elif name == "ccx":
op = ToffoliGate(qubits[0], qubits[1], qubits[2])
elif name == "cswap":
op = FredkinGate(qubits[0], qubits[1], qubits[2])
else:
raise BackendError("unknown operation for name ast node name %s" %
name)
self.circuit.add_basis_element(op.name, len(op.qargs), len(op.cargs),
len(op.param))
self.start_gate(op)
self.end_gate(op)