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test_logical_qubit.py
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test_logical_qubit.py
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from logical_qubit import *
from projectq import MainEngine
from projectq.backends import Simulator
from projectq.cengines import DummyEngine
import pytest
@pytest.fixture
def main_engine():
return MainEngine(backend=Simulator(), engine_list=[DummyEngine()])
def test_noisy_gate():
# Test that when you add a noisy gate it is applying
# the gate and your command list length goes up by 2
dummy_engine = DummyEngine(save_commands=True)
eng = MainEngine(backend=Simulator(), engine_list=[dummy_engine])
data = eng.allocate_qureg(1)
ancilla = eng.allocate_qureg(1)
rxx_gate = NoisyGate(Rxx(pi / 2), (data[0], ancilla[0]))
rxx_gate.apply()
rx_gate = NoisyGate(Rx(pi / 2), (data[0]))
rx_gate.apply()
All(Measure) | data
All(Measure) | ancilla
assert len(dummy_engine.received_commands) == 6
def test_stabilizer_cycle():
backend = Simulator()
dummy_engine = DummyEngine(save_commands=True)
eng = MainEngine(backend, [dummy_engine])
data = eng.allocate_qureg(9)
ancilla = eng.allocate_qureg(8)
syndrome0 = StabiliserCycle(data=data, ancilla=ancilla, location=[0], error_model=pdd_error_model)
assert len(syndrome0.all_gate_locations) == 60
assert len(syndrome0.gate_locations[Rxx]) == 24
assert len(syndrome0.gate_locations[Rx]) == 12
assert len(syndrome0.gate_locations[Ry]) == 24
assert len(syndrome0.error_locations[YCtrlError]) == 24
assert len(syndrome0.error_locations[XCtrlError]) == 36
assert len(syndrome0.error_locations[DephasingError]) == 60
test_noisy_gate()
test_stabilizer_cycle()