def test_bell_schedule(self):
"""Test complex schedule to create a Bell state."""
with builder.build() as test_sched:
with builder.align_sequential():
# H
builder.shift_phase(-1.57, DriveChannel(0))
builder.play(Drag(160, 0.05, 40, 1.3), DriveChannel(0))
builder.shift_phase(-1.57, DriveChannel(0))
# ECR
with builder.align_left():
builder.play(GaussianSquare(800, 0.05, 64, 544),
DriveChannel(1))
builder.play(GaussianSquare(800, 0.1 - 0.2j, 64, 544),
ControlChannel(0))
builder.play(Drag(160, 0.1, 40, 1.5), DriveChannel(0))
with builder.align_left():
builder.play(GaussianSquare(800, -0.05, 64, 544),
DriveChannel(1))
builder.play(GaussianSquare(800, -0.1 + 0.2j, 64, 544),
ControlChannel(0))
builder.play(Drag(160, 0.1, 40, 1.5), DriveChannel(0))
# Measure
with builder.align_left():
builder.play(GaussianSquare(8000, 0.2, 64, 7744),
MeasureChannel(0))
builder.acquire(8000, AcquireChannel(0), MemorySlot(0))
self.assert_roundtrip_equal(test_sched)
def test_param_validation(self):
"""Test that parametric pulse parameters are validated when initialized."""
with self.assertRaises(PulseError):
Gaussian(duration=25, sigma=0, amp=0.5j)
with self.assertRaises(PulseError):
GaussianSquare(duration=150, amp=0.2, sigma=8)
with self.assertRaises(PulseError):
GaussianSquare(duration=150,
amp=0.2,
sigma=8,
width=100,
risefall_sigma_ratio=5)
with self.assertRaises(PulseError):
GaussianSquare(duration=150, amp=0.2, sigma=8, width=160)
with self.assertRaises(PulseError):
GaussianSquare(duration=150,
amp=0.2,
sigma=8,
risefall_sigma_ratio=10)
with self.assertRaises(PulseError):
Constant(duration=150, amp=0.9 + 0.8j)
with self.assertRaises(PulseError):
Drag(duration=25, amp=0.2 + 0.3j, sigma=-7.8, beta=4)
with self.assertRaises(PulseError):
Drag(duration=25, amp=0.2 + 0.3j, sigma=7.8, beta=4j)
def test_construction(self):
"""Test that parametric pulses can be constructed without error."""
Gaussian(duration=25, sigma=4, amp=0.5j)
GaussianSquare(duration=150, amp=0.2, sigma=8, width=140)
GaussianSquare(duration=150, amp=0.2, sigma=8, risefall_sigma_ratio=2.5)
Constant(duration=150, amp=0.1 + 0.4j)
Drag(duration=25, amp=0.2 + 0.3j, sigma=7.8, beta=4)
def test_gaussian_square_pulse(self):
"""Test that GaussianSquare sample pulse matches the pulse library."""
gauss_sq = GaussianSquare(duration=125, sigma=4, amp=0.5j, width=100)
sample_pulse = gauss_sq.get_waveform()
self.assertIsInstance(sample_pulse, Waveform)
pulse_lib_gauss_sq = gaussian_square(duration=125, sigma=4, amp=0.5j, width=100,
zero_ends=True).samples
np.testing.assert_almost_equal(sample_pulse.samples, pulse_lib_gauss_sq)
def test_gaussian_square_limit_amplitude_per_instance(self):
"""Test that the check for amplitude per instance."""
with self.assertRaises(PulseError):
GaussianSquare(duration=100, sigma=1.0, amp=1.1 + 0.8j, width=10)
waveform = GaussianSquare(duration=100,
sigma=1.0,
amp=1.1 + 0.8j,
width=10,
limit_amplitude=False)
self.assertGreater(np.abs(waveform.amp), 1.0)
def test_gaussian_square_limit_amplitude(self):
"""Test that the check for amplitude less than or equal to 1 can be disabled."""
with self.assertRaises(PulseError):
GaussianSquare(duration=100, sigma=1.0, amp=1.1 + 0.8j, width=10)
with patch("qiskit.pulse.library.pulse.Pulse.limit_amplitude",
new=False):
waveform = GaussianSquare(duration=100,
sigma=1.0,
amp=1.1 + 0.8j,
width=10)
self.assertGreater(np.abs(waveform.amp), 1.0)
def test_gauss_square_samples(self):
"""Test that the gaussian square samples match the formula."""
duration = 125
sigma = 4
amp = 0.5j
# formulaic
times = np.array(range(25), dtype=np.complex_)
times = times - (25 / 2) + 0.5
gauss = amp * np.exp(-(times / sigma)**2 / 2)
# wf
wf = GaussianSquare(duration=duration, sigma=sigma, amp=amp, width=100)
samples = wf.get_waveform().samples
np.testing.assert_almost_equal(samples[50], amp)
np.testing.assert_almost_equal(samples[100], amp)
np.testing.assert_almost_equal(samples[:10], gauss[:10])
def test_repr(self):
"""Test the repr methods for parametric pulses."""
gaus = Gaussian(duration=25, amp=0.7, sigma=4)
self.assertEqual(repr(gaus), "Gaussian(duration=25, amp=(0.7+0j), sigma=4)")
gaus_square = GaussianSquare(duration=20, sigma=30, amp=1.0, width=3)
self.assertEqual(
repr(gaus_square), "GaussianSquare(duration=20, amp=(1+0j), sigma=30, width=3)"
)
gaus_square = GaussianSquare(duration=20, sigma=30, amp=1.0, risefall_sigma_ratio=0.1)
self.assertEqual(
repr(gaus_square), "GaussianSquare(duration=20, amp=(1+0j), sigma=30, width=14.0)"
)
drag = Drag(duration=5, amp=0.5, sigma=7, beta=1)
self.assertEqual(repr(drag), "Drag(duration=5, amp=(0.5+0j), sigma=7, beta=1)")
const = Constant(duration=150, amp=0.1 + 0.4j)
self.assertEqual(repr(const), "Constant(duration=150, amp=(0.1+0.4j))")
def test_hash_generation(self):
"""Test if pulse generate unique hash."""
test_hash = [hash(GaussianSquare(duration=688, amp=0.1+0.1j, sigma=64, width=432))
for _ in range(10)]
ref_hash = [test_hash[0] for _ in range(10)]
self.assertListEqual(test_hash, ref_hash)
def test_gaussian_square_pulse_instruction(self):
"""Test that parametric pulses are correctly converted to PulseQobjInstructions."""
converter = InstructionToQobjConverter(PulseQobjInstruction, meas_level=2)
instruction = Play(GaussianSquare(duration=1500, sigma=15, amp=-0.5 + 0.2j, width=1300),
MeasureChannel(1))
valid_qobj = PulseQobjInstruction(
name='parametric_pulse',
pulse_shape='gaussian_square',
ch='m1',
t0=10,
parameters={'duration': 1500, 'sigma': 15, 'amp': -0.5 + 0.2j, 'width': 1300})
self.assertEqual(converter(10, instruction), valid_qobj)
def test_gauss_square_extremes(self):
"""Test that the gaussian square pulse can build a gaussian."""
duration = 125
sigma = 4
amp = 0.5j
gaus_square = GaussianSquare(duration=duration, sigma=sigma, amp=amp, width=0)
gaus = Gaussian(duration=duration, sigma=sigma, amp=amp)
np.testing.assert_almost_equal(gaus_square.get_waveform().samples,
gaus.get_waveform().samples)
gaus_square = GaussianSquare(duration=duration, sigma=sigma, amp=amp, width=121)
const = Constant(duration=duration, amp=amp)
np.testing.assert_almost_equal(gaus_square.get_waveform().samples[2:-2],
const.get_waveform().samples[2:-2])
def test_gaussian_square_pulse_instruction(self):
"""Test that parametric pulses are correctly converted to PulseQobjInstructions."""
converter = InstructionToQobjConverter(PulseQobjInstruction,
meas_level=2)
instruction = Play(
GaussianSquare(duration=1500,
sigma=15,
amp=-0.5 + 0.2j,
width=1300), MeasureChannel(1))
valid_qobj = PulseQobjInstruction(
name="parametric_pulse",
pulse_shape="gaussian_square",
ch="m1",
t0=10,
parameters={
"duration": 1500,
"sigma": 15,
"amp": -0.5 + 0.2j,
"width": 1300
},
)
self.assertEqual(converter(10, instruction), valid_qobj)
def test_gauss_square_passes_validation_after_construction(self):
"""Test that parameter validation is consistent before and after construction.
This previously used to raise an exception: see gh-7882."""
pulse = GaussianSquare(duration=125, sigma=4, amp=0.5j, width=100)
pulse.validate_parameters()
