def insert_identities_into_dd_protected_program(program: "Program",
interval_time: float = None
) -> "Program":
"""
:param program: A program with DD-protected Gates
:param interval time : The duration of the free evolution (gate time of the I gates).
:return : A Program with inserted Identity gates
For instance- each G.Z-X-Z-X sequence becomes G.Z-I-X-I-Z-I-X-I
"""
p_new = Program()
for g in program:
if len(g.qubits) == 2:
interval_I1 = gates_with_time('I', [], [g.qubits[0]])
interval_I2 = gates_with_time('I', [], [g.qubits[1]])
interval_I1.gate_time = interval_time
interval_I2.gate_time = interval_time
p_new += interval_I1
p_new += interval_I2
p_new += g
else:
interval_I = gates_with_time('I', [], g.qubits)
interval_I.gate_time = interval_time
p_new += interval_I
p_new += g
return p_new
def get_decoupling_sequence(self,
gate: Gate,
dd_pulse_time: float = None) -> "Program":
if isinstance(gate, Gate):
angle = None
combined_gate = get_combined_gate(
*get_combined_gate_representation(gate.name, 'Y', gate.params))
if len(gate.qubits) != 1:
p = Program(RX(pi, gate.qubits[0]), RX(pi, gate.qubits[1]),
RY(pi, gate.qubits[0]), RY(pi, gate.qubits[1]),
RX(pi, gate.qubits[0]), RX(pi, gate.qubits[1]))
else:
p = Program(RX(pi, *gate.qubits), RY(pi, *gate.qubits),
RX(pi, *gate.qubits))
seq = set_gate_time(p, dd_pulse_time)
GY = combined_gate(
angle, *gate.qubits) if angle is not None else combined_gate(
*gate.qubits)
GY = gates_with_time(GY.name, GY.params, GY.qubits)
GY.dd = False
seq += GY
return seq
def get_decoupling_sequence(self,
gate: Gate,
dd_pulse_time: float = None) -> "Program":
if isinstance(gate, Gate):
angle = None
if gate.name == "RZ":
combined_gate = RZ
angle, = gate.params
angle += pi
else:
combined_gate = get_combined_gate(
*get_combined_gate_representation(gate.name, 'Z',
gate.params))
if len(gate.qubits) != 1:
p = Program(RY(pi, gate.qubits[0]), RY(pi, gate.qubits[1]),
RZ(pi, gate.qubits[0]), RZ(pi, gate.qubits[1]),
RY(pi, gate.qubits[0]), RY(pi, gate.qubits[1]))
else:
p = Program(RY(pi, *gate.qubits), RZ(pi, *gate.qubits),
RY(pi, *gate.qubits))
seq = set_gate_time(p, dd_pulse_time)
GZ = combined_gate(
angle, *gate.qubits) if angle is not None else combined_gate(
*gate.qubits)
GZ = gates_with_time(GZ.name, GZ.params, GZ.qubits)
GZ.dd = False
seq += GZ
return seq
def get_decoupling_sequence(self,
gate: Gate,
dd_pulse_time: float = None) -> "Program":
if isinstance(gate, Gate):
combined_gate = get_combined_gate(
*get_combined_gate_representation(gate.name, 'X', gate.params))
if len(gate.qubits) != 1:
p = Program(RY(pi, gate.qubits[0]), RY(pi, gate.qubits[1]),
RX(pi, gate.qubits[0]), RX(pi, gate.qubits[1]),
RY(pi, gate.qubits[0]), RY(pi, gate.qubits[1]))
else:
p = Program(RY(pi, *gate.qubits), RX(pi, *gate.qubits),
RY(pi, *gate.qubits))
seq = set_gate_time(p, dd_pulse_time)
GX = combined_gate(*gate.qubits)
GX = gates_with_time(GX.name, GX.params, GX.qubits)
GX.dd = False
seq += GX
return seq