def _define(self):
"""
gate ch a,b {
h b;
sdg b;
cx a,b;
h b;
t b;
cx a,b;
t b;
h b;
s b;
x b;
s a;}
"""
definition = []
q = QuantumRegister(2, "q")
rule = [(HGate(), [q[1]], []), (SdgGate(), [q[1]], []),
(CnotGate(), [q[0], q[1]], []), (HGate(), [q[1]], []),
(TGate(), [q[1]], []), (CnotGate(), [q[0], q[1]], []),
(TGate(), [q[1]], []), (HGate(), [q[1]], []),
(SGate(), [q[1]], []), (XGate(), [q[1]], []),
(SGate(), [q[0]], [])]
for inst in rule:
definition.append(inst)
self.definition = definition
def _define_decompositions(self):
"""
gate ch a,b {
h b;
sdg b;
cx a,b;
h b;
t b;
cx a,b;
t b;
h b;
s b;
x b;
s a;}
"""
decomposition = DAGCircuit()
q = QuantumRegister(2, "q")
decomposition.add_qreg(q)
rule = [
HGate(q[1]),
SdgGate(q[1]),
CnotGate(q[0], q[1]),
HGate(q[1]),
TGate(q[1]),
CnotGate(q[0], q[1]),
TGate(q[1]),
HGate(q[1]),
SGate(q[1]),
XGate(q[1]),
SGate(q[0])
]
for inst in rule:
decomposition.apply_operation_back(inst)
self._decompositions = [decomposition]
def _define(self):
"""
gate ch a,b {
s b;
h b;
t b;
cx a, b;
tdg b;
h b;
sdg b;
}
"""
from qiskit.extensions.standard.s import SGate, SdgGate
from qiskit.extensions.standard.t import TGate, TdgGate
from qiskit.extensions.standard.x import CnotGate
definition = []
q = QuantumRegister(2, "q")
rule = [
(SGate(), [q[1]], []),
(HGate(), [q[1]], []),
(TGate(), [q[1]], []),
(CnotGate(), [q[0], q[1]], []),
(TdgGate(), [q[1]], []),
(HGate(), [q[1]], []),
(SdgGate(), [q[1]], [])
]
for inst in rule:
definition.append(inst)
self.definition = definition
def __init__(self,
λ: float,
target: Tuple[QuantumRegister, int],
control: Tuple[QuantumRegister, int],
circ,
cnot_back: bool = False):
super().__init__("cPhase", [λ], [target, control], circ)
if math.fabs(λ - math.pi / 2) < 1e-3:
self.t(target)
self._cx(control, target, cnot_back)
super()._attach(TGate(target, circ).inverse())
self.t(control)
self._cx(control, target, cnot_back)
elif math.fabs(λ - math.pi) < 1e-3:
self.s(target)
self._cx(control, target, cnot_back)
super()._attach(SGate(target, circ).inverse())
self.s(control)
self._cx(control, target, cnot_back)
else:
super()._attach(RZGate_ibm(λ, target))
self._cx(control, target, cnot_back)
super()._attach(RZGate_ibm(-λ, target))
super()._attach(RZGate_ibm(λ, control))
self._cx(control, target, cnot_back)
def _define(self):
"""
gate iswap a,b {
s q[0];
s q[1];
h q[0];
cx q[0],q[1];
cx q[1],q[0];
h q[1];
}
"""
from qiskit.extensions.standard.h import HGate
from qiskit.extensions.standard.s import SGate
from qiskit.extensions.standard.x import CXGate
q = QuantumRegister(2, 'q')
self.definition = [(SGate(), [q[0]], []), (SGate(), [q[1]], []),
(HGate(), [q[0]], []), (CXGate(), [q[0], q[1]], []),
(CXGate(), [q[1], q[0]], []), (HGate(), [q[1]], [])]
def _define_decompositions(self):
"""
gate cy a,b { sdg b; cx a,b; s b; }
"""
decomposition = DAGCircuit()
q = QuantumRegister(2, "q")
decomposition.add_qreg(q)
decomposition.add_basis_element("s", 1, 0, 0)
decomposition.add_basis_element("sdg", 1, 0, 0)
decomposition.add_basis_element("cx", 2, 0, 0)
rule = [SdgGate(q[1]), CnotGate(q[0], q[1]), SGate(q[1])]
for inst in rule:
decomposition.apply_operation_back(inst)
self._decompositions = [decomposition]
def _define(self):
"""
gate cy a,b { sdg b; cx a,b; s b; }
"""
from qiskit.extensions.standard.s import SGate
from qiskit.extensions.standard.s import SdgGate
from qiskit.extensions.standard.x import CXGate
definition = []
q = QuantumRegister(2, 'q')
rule = [(SdgGate(), [q[1]], []), (CXGate(), [q[0], q[1]], []),
(SGate(), [q[1]], [])]
for inst in rule:
definition.append(inst)
self.definition = definition
def test_inverse_and_append(self):
"""test appending inverted gates to circuits"""
q = QuantumRegister(1)
circ = QuantumCircuit(q, name='circ')
circ.s(q)
circ.append(SGate().inverse(), q[:])
circ.append(TGate().inverse(), q[:])
circ.t(q)
gate = circ.to_instruction()
circ = QuantumCircuit(q, name='circ')
circ.inverse()
circ.tdg(q)
circ.t(q)
circ.s(q)
circ.sdg(q)
gate_inverse = circ.to_instruction()
self.assertEqual(gate.inverse().definition, gate_inverse.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)
