def test_consistent_protocols():
gate = coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18))
cirq.testing.assert_implements_consistent_protocols(
gate,
setup_code=
'import cirq\nimport numpy as np\nimport sympy\nimport cirq_google',
qubit_count=2,
)
assert gate.num_qubits() == 2
def test_coupler_pulse_str_repr():
gate = coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18))
assert (str(gate) == 'CouplerPulse(hold_time=10 ns, coupling_mhz=25.0, ' +
'rise_time=18 ns, padding_time=2500.0 ps)')
assert (repr(
gate) == 'cirq_google.experimental.ops.coupler_pulse.CouplerPulse(' +
'hold_time=cirq.Duration(nanos=10), ' + 'coupling_mhz=25.0, ' +
'rise_time=cirq.Duration(nanos=18), ' +
'padding_time=cirq.Duration(picos=2500.0))')
def test_coupler_pulse_validation():
with pytest.raises(ValueError, match='Full rise time'):
_ = coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=20),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=10))
with pytest.raises(ValueError, match='hold_time must be between'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=110),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=120),
)
with pytest.raises(ValueError, match='hold_time must be between'):
_ = coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=-10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=20))
with pytest.raises(ValueError, match='padding_time must be between'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=20),
padding_time=cirq.Duration(nanos=200),
)
with pytest.raises(ValueError, match='padding_time must be between'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=20),
padding_time=cirq.Duration(nanos=-20),
)
with pytest.raises(ValueError, match='rise_time must be between'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=102),
)
def test_coupler_pulse_validation():
with pytest.raises(ValueError, match='Total time of coupler pulse'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=210), coupling_mhz=25.0, rise_time=cirq.Duration(nanos=10)
)
with pytest.raises(ValueError, match='hold_time must be greater'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=-10), coupling_mhz=25.0, rise_time=cirq.Duration(nanos=20)
)
with pytest.raises(ValueError, match='Total time of coupler pulse'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=20),
padding_time=cirq.Duration(nanos=200),
)
with pytest.raises(ValueError, match='padding_time must be greater'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=20),
padding_time=cirq.Duration(nanos=-20),
)
with pytest.raises(ValueError, match='rise_time must be greater'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10), coupling_mhz=25.0, rise_time=cirq.Duration(nanos=-1)
)
with pytest.raises(ValueError, match='Total time of coupler pulse'):
_ = coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10), coupling_mhz=25.0, rise_time=cirq.Duration(nanos=302)
)
def test_coupler_pulse_circuit_diagram():
a, b = cirq.LineQubit.range(2)
gate = coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18))
circuit = cirq.Circuit(gate(a, b))
cirq.testing.assert_has_diagram(
circuit,
r"""
0: ───/‾‾(10 [email protected])‾‾\───
│
1: ───/‾‾(10 [email protected])‾‾\───
""",
)
def test_sycamore_devices(device, qubit_size, layout_str):
q0 = cirq.GridQubit(5, 3)
q1 = cirq.GridQubit(5, 4)
valid_sycamore_gates_and_ops = [
cirq_google.SYC,
cirq.SQRT_ISWAP,
cirq.SQRT_ISWAP_INV,
cirq.X,
cirq.Y,
cirq.Z,
cirq.Z(q0).with_tags(cirq_google.PhysicalZTag()),
coupler_pulse.CouplerPulse(hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0),
cirq.measure(q0),
cirq.WaitGate(cirq.Duration(millis=5)),
# TODO(#5050) Uncomment after GlobalPhaseGate support is added.
# cirq.GlobalPhaseGate(-1.0),
]
syc = cirq.FSimGate(theta=np.pi / 2, phi=np.pi / 6)(q0, q1)
sqrt_iswap = cirq.FSimGate(theta=np.pi / 4, phi=0)(q0, q1)
assert str(device) == layout_str
assert len(device.metadata.qubit_pairs) == qubit_size
assert all(gate_or_op in device.metadata.gateset
for gate_or_op in valid_sycamore_gates_and_ops)
assert len(device.metadata.gate_durations) == len(
device.metadata.gateset.gates)
assert any(
isinstance(cgs, cirq_google.SycamoreTargetGateset)
for cgs in device.metadata.compilation_target_gatesets)
assert any(
isinstance(cgs, cirq.SqrtIswapTargetGateset)
for cgs in device.metadata.compilation_target_gatesets)
device.validate_operation(syc)
device.validate_operation(sqrt_iswap)
assert next(
(duration
for gate_family, duration in device.metadata.gate_durations.items()
if syc in gate_family),
None,
) == cirq.Duration(nanos=12)
assert next(
(duration
for gate_family, duration in device.metadata.gate_durations.items()
if sqrt_iswap in gate_family),
None,
) == cirq.Duration(nanos=32)
def test_equality():
eq = cirq.testing.EqualsTester()
eq.add_equality_group(
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18),
padding_time=cirq.Duration(nanos=4),
),
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18),
padding_time=cirq.Duration(nanos=4),
),
)
eq.add_equality_group(
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=12),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18),
padding_time=cirq.Duration(nanos=4),
)
)
eq.add_equality_group(
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=26.0,
rise_time=cirq.Duration(nanos=18),
padding_time=cirq.Duration(nanos=4),
)
)
eq.add_equality_group(
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=28),
padding_time=cirq.Duration(nanos=4),
)
)
eq.add_equality_group(
coupler_pulse.CouplerPulse(
hold_time=cirq.Duration(nanos=10),
coupling_mhz=25.0,
rise_time=cirq.Duration(nanos=18),
padding_time=cirq.Duration(nanos=40),
)
)