def test_ideal_sqrt_iswap_simulates_correctly_invalid_circuit_fails() -> None:
engine_simulator = PhasedFSimEngineSimulator.create_with_ideal_sqrt_iswap()
with pytest.raises(IncompatibleMomentError):
a, b = cirq.LineQubit.range(2)
circuit = cirq.Circuit([cirq.CZ.on(a, b)])
engine_simulator.simulate(circuit)
with pytest.raises(IncompatibleMomentError):
circuit = cirq.Circuit(cirq.GlobalPhaseOperation(coefficient=1.0))
engine_simulator.simulate(circuit)
def test_ideal_sqrt_iswap_inverse_simulates_correctly() -> None:
a, b, c, d = cirq.LineQubit.range(4)
circuit = cirq.Circuit(
[
[cirq.X(a), cirq.Y(c)],
[cirq.FSimGate(-np.pi / 4, 0.0).on(a, b), cirq.FSimGate(-np.pi / 4, 0.0).on(c, d)],
[cirq.FSimGate(-np.pi / 4, 0.0).on(b, c)],
]
)
engine_simulator = PhasedFSimEngineSimulator.create_with_ideal_sqrt_iswap()
actual = engine_simulator.final_state_vector(circuit)
expected = cirq.final_state_vector(circuit)
assert cirq.allclose_up_to_global_phase(actual, expected)
def test_run_characterization_with_simulator():
q_00, q_01, q_02, q_03 = [cirq.GridQubit(0, index) for index in range(4)]
gate = SQRT_ISWAP_GATE
request = FloquetPhasedFSimCalibrationRequest(
gate=gate,
pairs=((q_00, q_01), (q_02, q_03)),
options=FloquetPhasedFSimCalibrationOptions(
characterize_theta=True,
characterize_zeta=True,
characterize_chi=False,
characterize_gamma=False,
characterize_phi=True,
),
)
simulator = PhasedFSimEngineSimulator.create_with_ideal_sqrt_iswap()
actual = workflow.run_calibrations([request], simulator)
assert actual == [
PhasedFSimCalibrationResult(
parameters={
(q_00, q_01):
PhasedFSimCharacterization(theta=np.pi / 4,
zeta=0.0,
chi=None,
gamma=None,
phi=0.0),
(q_02, q_03):
PhasedFSimCharacterization(theta=np.pi / 4,
zeta=0.0,
chi=None,
gamma=None,
phi=0.0),
},
gate=SQRT_ISWAP_GATE,
options=FloquetPhasedFSimCalibrationOptions(
characterize_theta=True,
characterize_zeta=True,
characterize_chi=False,
characterize_gamma=False,
characterize_phi=True,
),
)
]