def test_apply_noise_to_gates_2QubitNoise_2(
circuit_3qubit, noise_2qubit, noise_1qubit, noise_1qubit_2
):
circ = apply_noise_to_gates(
circuit_3qubit,
[noise_1qubit, noise_2qubit, noise_1qubit_2],
target_gates=[Gate.CZ],
target_qubits=QubitSet([1, 2]),
)
expected = (
Circuit()
.add_instruction(Instruction(Gate.X(), 0))
.add_instruction(Instruction(Gate.Y(), 1))
.add_instruction(Instruction(Gate.CNot(), [0, 1]))
.add_instruction(Instruction(Gate.Z(), 2))
.add_instruction(Instruction(Gate.CZ(), [2, 1]))
.add_instruction(Instruction(noise_1qubit, 1))
.add_instruction(Instruction(noise_1qubit, 2))
.add_instruction(Instruction(noise_2qubit, [2, 1]))
.add_instruction(Instruction(noise_1qubit_2, 1))
.add_instruction(Instruction(noise_1qubit_2, 2))
.add_instruction(Instruction(Gate.CNot(), [0, 2]))
.add_instruction(Instruction(Gate.CZ(), [1, 2]))
.add_instruction(Instruction(noise_1qubit, 1))
.add_instruction(Instruction(noise_1qubit, 2))
.add_instruction(Instruction(noise_2qubit, [1, 2]))
.add_instruction(Instruction(noise_1qubit_2, 1))
.add_instruction(Instruction(noise_1qubit_2, 2))
)
assert circ == expected
def test_apply_noise_to_moments_initialization_2QubitNoise_2(
circuit_2qubit, noise_2qubit, noise_1qubit, noise_1qubit_2
):
circ = apply_noise_to_moments(
circuit_2qubit,
[noise_1qubit, noise_2qubit, noise_1qubit_2],
target_qubits=QubitSet([0, 1]),
position="initialization",
)
expected = (
Circuit()
.add_instruction(Instruction(noise_1qubit, 0))
.add_instruction(Instruction(noise_1qubit, 1))
.add_instruction(Instruction(noise_2qubit, [0, 1]))
.add_instruction(Instruction(noise_1qubit_2, 0))
.add_instruction(Instruction(noise_1qubit_2, 1))
.add_instruction(Instruction(Gate.X(), 0))
.add_instruction(Instruction(Gate.Y(), 1))
.add_instruction(Instruction(Gate.X(), 0))
.add_instruction(Instruction(Gate.X(), 1))
.add_instruction(Instruction(Gate.CNot(), [0, 1]))
)
assert circ == expected
def test_apply_multiple_noise_1QubitNoise_2(circuit_2qubit, noise_1qubit,
noise_1qubit_2):
circ = circuit_2qubit.apply_gate_noise(
noise_1qubit,
target_gates=[Gate.X],
).apply_gate_noise(
noise_1qubit_2,
target_qubits=[0],
)
expected = (Circuit().add_instruction(Instruction(
Gate.X(),
0)).add_instruction(Instruction(noise_1qubit_2, 0)).add_instruction(
Instruction(noise_1qubit, 0)).add_instruction(
Instruction(Gate.Y(), 1)).add_instruction(
Instruction(Gate.X(), 0)).add_instruction(
Instruction(noise_1qubit_2, 0)).add_instruction(
Instruction(noise_1qubit, 0)).add_instruction(
Instruction(Gate.X(), 1)).add_instruction(
Instruction(
noise_1qubit, 1)).add_instruction(
Instruction(
Gate.CNot(),
[0, 1])).add_instruction(
Instruction(
noise_1qubit_2, 0)))
assert circ == expected
def cnot(control: QubitInput, target: QubitInput) -> Instruction:
"""Registers this function into the circuit class.
Args:
control (Qubit or int): Control qubit index.
target (Qubit or int): Target qubit index.
Returns:
Instruction: CNot instruction.
Examples:
>>> circ = Circuit().cnot(0, 1)
"""
return Instruction(Gate.CNot(), target=[control, target])
def test_noise_not_applied_1QubitNoise_1(circuit_2qubit, noise_2qubit):
circ = circuit_2qubit.apply_gate_noise(
[noise_2qubit],
target_qubits=[1],
target_gates=[],
)
expected = (Circuit().add_instruction(Instruction(
Gate.X(),
0)).add_instruction(Instruction(Gate.Y(), 1)).add_instruction(
Instruction(Gate.X(), 0)).add_instruction(Instruction(
Gate.X(), 1)).add_instruction(Instruction(Gate.CNot(),
[0, 1])))
assert circ == expected
def test_apply_initialization_noise_1QubitNoise_1(circuit_2qubit,
noise_1qubit):
circ = circuit_2qubit.apply_initialization_noise(
[noise_1qubit],
target_qubits=[0, 1],
)
expected = (Circuit().add_instruction(Instruction(
noise_1qubit,
0)).add_instruction(Instruction(noise_1qubit, 1)).add_instruction(
Instruction(Gate.X(), 0)).add_instruction(Instruction(
Gate.Y(),
1)).add_instruction(Instruction(Gate.X(), 0)).add_instruction(
Instruction(Gate.X(), 1)).add_instruction(
Instruction(Gate.CNot(), [0, 1])))
assert circ == expected
def test_apply_noise_to_moments_readout_1QubitNoise_2(circuit_2qubit,
noise_1qubit):
circ = apply_noise_to_moments(
circuit_2qubit,
[noise_1qubit],
target_qubits=QubitSet(1),
position="readout",
)
expected = (Circuit().add_instruction(Instruction(
Gate.X(),
0)).add_instruction(Instruction(Gate.Y(), 1)).add_instruction(
Instruction(Gate.X(), 0)).add_instruction(Instruction(
Gate.X(), 1)).add_instruction(Instruction(
Gate.CNot(),
[0, 1])).add_instruction(Instruction(noise_1qubit, 1)))
assert circ == expected
def test_apply_noise_to_gates_1QubitNoise_2(circuit_2qubit, noise_1qubit):
circ = apply_noise_to_gates(
circuit_2qubit,
[noise_1qubit],
target_gates=[Gate.X],
target_qubits=QubitSet(0),
)
expected = (Circuit().add_instruction(Instruction(
Gate.X(),
0)).add_instruction(Instruction(noise_1qubit, 0)).add_instruction(
Instruction(Gate.Y(), 1)).add_instruction(Instruction(
Gate.X(), 0)).add_instruction(Instruction(
noise_1qubit, 0)).add_instruction(Instruction(
Gate.X(),
1)).add_instruction(Instruction(Gate.CNot(), [0, 1])))
assert circ == expected
def test_apply_gate_noise_1QubitNoise_1_unitary(circuit_2qubit_with_unitary, noise_1qubit):
circ = circuit_2qubit_with_unitary.apply_gate_noise(
noise_1qubit,
target_unitary=np.array([[0, 1], [1, 0]]),
target_qubits=[0, 1],
)
expected = (
Circuit()
.add_instruction(Instruction(Gate.X(), 0))
.add_instruction(Instruction(Gate.Y(), 1))
.add_instruction(Instruction(Gate.X(), 0))
.add_instruction(Instruction(Gate.X(), 1))
.add_instruction(Instruction(Gate.CNot(), [0, 1]))
.add_instruction(Instruction(Gate.Unitary(np.array([[0, 1], [1, 0]]), "U"), 0))
.add_instruction(Instruction(noise_1qubit, 0))
)
assert circ == expected
def test_apply_noise_to_gates_1QubitNoise_not_dense(circuit_2qubit_not_dense, noise_1qubit):
circ = apply_noise_to_gates(
circuit_2qubit_not_dense,
[noise_1qubit],
target_qubits=QubitSet([0, 1]),
target_gates=None,
)
expected_moments = Moments()
expected_moments._add(Instruction(Gate.X(), 0), noise_index=1)
expected_moments.add_noise(Instruction(noise_1qubit, 0), "gate_noise", 1)
expected_moments._add(Instruction(Gate.Y(), 1), noise_index=1)
expected_moments.add_noise(Instruction(noise_1qubit, 1), "gate_noise", 1)
expected_moments._add(Instruction(Gate.X(), 0), noise_index=1)
expected_moments.add_noise(Instruction(noise_1qubit, 0), "gate_noise", 1)
expected_moments._add(Instruction(Gate.CNot(), [0, 1]), noise_index=2)
expected_moments.add_noise(Instruction(noise_1qubit, 0), "gate_noise", 1)
expected_moments.add_noise(Instruction(noise_1qubit, 1), "gate_noise", 2)
assert circ.moments == expected_moments
