def test_exceptions(self):
X = util.paulis[1]
n_dt = 10
omega = np.linspace(0, 1, 50)
pulse_1 = testutil.rand_pulse_sequence(2, n_dt, btype='Pauli')
pulse_2 = testutil.rand_pulse_sequence(2, n_dt, btype='GGM')
pulse_1.cache_filter_function(omega)
pulse_11 = ff.extend([[pulse_1, 0], [pulse_1, 1]])
pulse_11.cache_filter_function(omega+1)
with self.assertRaises(ValueError):
# qubit indices don't match on pulse that is remapped
ff.extend([(pulse_11, (2, 1, 0))])
with self.assertRaises(ValueError):
# wrong dimensions
ff.extend([(pulse_1, (0, 1))])
with self.assertRaises(ValueError):
# wrong dimensions
ff.extend([(pulse_1, (0,))], d_per_qubit=3)
with self.assertRaises(ValueError):
# wrong dimensions
ff.extend([(pulse_11, (0,))])
with self.assertRaises(ValueError):
# different dt
ff.extend([(pulse_1, 0), [pulse_2, 1]])
with self.assertRaises(ValueError):
# Multiple pulses mapped to same qubit
ff.extend([(pulse_1, 0), [pulse_1, 0]])
with self.assertRaises(ValueError):
# N < max(qubits)
ff.extend([(pulse_1, 2)], N=2)
with self.assertRaises(ValueError):
# cache_filter_function == True and unequal omega
ff.extend([(pulse_1, 0), (pulse_11, (1, 2))],
cache_filter_function=True, omega=None)
with self.assertRaises(ValueError):
# cache_diagonalization == False and additional_noise_Hamiltonian
# is not None
additional_noise_Hamiltonian = [[util.tensor(X, X), np.ones(n_dt)]]
ff.extend(
[(pulse_1, 0), (pulse_1, 1)], cache_diagonalization=False,
additional_noise_Hamiltonian=additional_noise_Hamiltonian
)
with self.assertRaises(ValueError):
# additional noise Hamiltonian defines existing identifier
additional_noise_Hamiltonian = [
[util.tensor(X, X), np.ones(n_dt), 'foo'],
[util.tensor(X, X), np.ones(n_dt), 'foo'],
]
ff.extend(
[(pulse_1, 0), (pulse_1, 1)],
additional_noise_Hamiltonian=additional_noise_Hamiltonian
)
with self.assertRaises(ValueError):
# additional_noise_Hamiltonian has wrong dimensions
additional_noise_Hamiltonian = [[util.tensor(X, X, X),
np.ones(n_dt)]]
ff.extend(
[(pulse_1, 0), (pulse_1, 1)],
additional_noise_Hamiltonian=additional_noise_Hamiltonian
)
with self.assertWarns(UserWarning):
# Non-pauli basis
ff.extend([(pulse_2, 0)])
def test_caching(self):
"""Test caching"""
pulse_1 = testutil.rand_pulse_sequence(2, 10, btype='Pauli')
pulse_2 = testutil.rand_pulse_sequence(2, 10, btype='Pauli')
pulse_2.dt = pulse_1.dt
pulse_2.t = pulse_1.t
omega = util.get_sample_frequencies(pulse_1, 50)
# diagonalize one pulse
pulse_1.diagonalize()
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)])
self.assertIsNone(extended_pulse._eigvals)
self.assertIsNone(extended_pulse._eigvecs)
self.assertIsNone(extended_pulse._propagators)
self.assertIsNone(extended_pulse._total_propagator)
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
# override
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)],
cache_diagonalization=True)
self.assertIsNotNone(extended_pulse._eigvals)
self.assertIsNotNone(extended_pulse._eigvecs)
self.assertIsNotNone(extended_pulse._propagators)
self.assertIsNotNone(extended_pulse._total_propagator)
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
# diagonalize both
pulse_2.diagonalize()
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)])
self.assertIsNotNone(extended_pulse._eigvals)
self.assertIsNotNone(extended_pulse._eigvecs)
self.assertIsNotNone(extended_pulse._propagators)
self.assertIsNotNone(extended_pulse._total_propagator)
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
# override
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)],
cache_diagonalization=False)
self.assertIsNone(extended_pulse._eigvals)
self.assertIsNone(extended_pulse._eigvecs)
self.assertIsNone(extended_pulse._propagators)
# Total_propagators is still cached
self.assertIsNotNone(extended_pulse._total_propagator)
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
# Get filter function for one pulse
pulse_1.cache_filter_function(omega)
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)])
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
# override
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)],
cache_filter_function=True,
omega=omega)
self.assertIsNotNone(extended_pulse._total_propagator_liouville)
self.assertIsNotNone(extended_pulse._total_phases)
self.assertIsNotNone(extended_pulse._control_matrix)
self.assertIsNotNone(extended_pulse._filter_function)
# Get filter function for both
pulse_2.cache_filter_function(omega)
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)])
self.assertIsNotNone(extended_pulse._total_propagator_liouville)
self.assertIsNotNone(extended_pulse._total_phases)
self.assertIsNotNone(extended_pulse._control_matrix)
self.assertIsNotNone(extended_pulse._filter_function)
# override
extended_pulse = ff.extend([(pulse_1, 0), (pulse_2, 1)],
cache_filter_function=False)
self.assertIsNone(extended_pulse._total_propagator_liouville)
self.assertIsNone(extended_pulse._total_phases)
self.assertIsNone(extended_pulse._control_matrix)
self.assertIsNone(extended_pulse._filter_function)
def test_accuracy(self):
ID, X, Y, Z = util.paulis
XI = util.tensor(X, ID)
IX = util.tensor(ID, X)
XII = util.tensor(X, ID, ID)
IXI = util.tensor(ID, X, ID)
IIX = util.tensor(ID, ID, X)
XIII = util.tensor(X, ID, ID, ID)
IXII = util.tensor(ID, X, ID, ID)
IIXI = util.tensor(ID, ID, X, ID)
IIIX = util.tensor(ID, ID, ID, X)
YI = util.tensor(Y, ID)
IY = util.tensor(ID, Y)
YII = util.tensor(Y, ID, ID)
IYI = util.tensor(ID, Y, ID)
IIY = util.tensor(ID, ID, Y)
YIII = util.tensor(Y, ID, ID, ID)
IYII = util.tensor(ID, Y, ID, ID)
IIYI = util.tensor(ID, ID, Y, ID)
IIIY = util.tensor(ID, ID, ID, Y)
ZI = util.tensor(Z, ID)
IZ = util.tensor(ID, Z)
ZII = util.tensor(Z, ID, ID)
IZI = util.tensor(ID, Z, ID)
ZIII = util.tensor(Z, ID, ID, ID)
IZII = util.tensor(ID, Z, ID, ID)
IIZI = util.tensor(ID, ID, Z, ID)
IIIZ = util.tensor(ID, ID, ID, Z)
IIZ = util.tensor(ID, ID, Z)
XXX = util.tensor(X, X, X)
n_dt = 10
coeffs = rng.standard_normal((3, n_dt))
X_pulse = ff.PulseSequence(
[[X, coeffs[0], 'X']],
list(zip((X, Y, Z), np.ones((3, n_dt)), ('X', 'Y', 'Z'))),
np.ones(n_dt),
basis=ff.Basis.pauli(1)
)
Y_pulse = ff.PulseSequence(
[[Y, coeffs[1], 'Y']],
list(zip((X, Y, Z), np.ones((3, n_dt)), ('X', 'Y', 'Z'))),
np.ones(n_dt),
basis=ff.Basis.pauli(1)
)
Z_pulse = ff.PulseSequence(
[[Z, coeffs[2], 'Z']],
list(zip((X, Y, Z), np.ones((3, n_dt)), ('X', 'Y', 'Z'))),
np.ones(n_dt),
basis=ff.Basis.pauli(1)
)
XZ_pulse = ff.PulseSequence(
[[XI, coeffs[0], 'XI'],
[IZ, coeffs[2], 'IZ']],
list(zip((XI, YI, ZI, IX, IY, IZ), np.ones((6, n_dt)),
('XI', 'YI', 'ZI', 'IX', 'IY', 'IZ'))),
np.ones(n_dt),
basis=ff.Basis.pauli(2)
)
XYZ_pulse = ff.PulseSequence(
[[XII, coeffs[0], 'XII'],
[IYI, coeffs[1], 'IYI'],
[IIZ, coeffs[2], 'IIZ']],
list(zip((XII, YII, ZII, IIX, IIY, IIZ, IXI, IYI, IZI, XXX),
np.ones((10, n_dt)),
('XII', 'YII', 'ZII', 'IIX', 'IIY', 'IIZ', 'IXI', 'IYI',
'IZI', 'XXX'))),
np.ones(n_dt),
basis=ff.Basis.pauli(3)
)
ZYX_pulse = ff.PulseSequence(
[[IIX, coeffs[0], 'IIX'],
[IYI, coeffs[1], 'IYI'],
[ZII, coeffs[2], 'ZII']],
list(zip((IIX, IIY, IIZ, XII, YII, ZII, IXI, IYI, IZI),
np.ones((9, n_dt)),
('IIX', 'IIY', 'IIZ', 'XII', 'YII', 'ZII', 'IXI', 'IYI',
'IZI'))),
np.ones(n_dt),
basis=ff.Basis.pauli(3)
)
XZXZ_pulse = ff.PulseSequence(
[[XIII, coeffs[0], 'XIII'],
[IZII, coeffs[2], 'IZII'],
[IIXI, coeffs[0], 'IIXI'],
[IIIZ, coeffs[2], 'IIIZ']],
list(zip((XIII, YIII, ZIII, IXII, IYII, IZII,
IIXI, IIYI, IIZI, IIIX, IIIY, IIIZ),
np.ones((12, n_dt)),
('XIII', 'YIII', 'ZIII', 'IXII', 'IYII', 'IZII',
'IIXI', 'IIYI', 'IIZI', 'IIIX', 'IIIY', 'IIIZ'))),
np.ones(n_dt),
basis=ff.Basis.pauli(4)
)
XXZZ_pulse = ff.PulseSequence(
[[XIII, coeffs[0], 'XIII'],
[IIZI, coeffs[2], 'IIZI'],
[IXII, coeffs[0], 'IXII'],
[IIIZ, coeffs[2], 'IIIZ']],
list(zip((XIII, YIII, ZIII, IIXI, IIYI, IIZI,
IXII, IYII, IZII, IIIX, IIIY, IIIZ),
np.ones((12, n_dt)),
('XIII', 'YIII', 'ZIII', 'IIXI', 'IIYI', 'IIZI',
'IXII', 'IYII', 'IZII', 'IIIX', 'IIIY', 'IIIZ'))),
np.ones(n_dt),
basis=ff.Basis.pauli(4)
)
# Cache
omega = ff.util.get_sample_frequencies(XYZ_pulse, n_samples=50)
X_pulse.cache_filter_function(omega)
Y_pulse.cache_filter_function(omega)
Z_pulse.cache_filter_function(omega)
XZ_pulse.cache_filter_function(omega)
XYZ_pulse.cache_filter_function(omega)
ZYX_pulse.cache_filter_function(omega)
XZXZ_pulse.cache_filter_function(omega)
XXZZ_pulse.cache_filter_function(omega)
# Test that mapping a pulse to itself returns the pulse itself and
# issues a warning
with self.assertWarns(UserWarning):
pulse = ff.extend([(X_pulse, 0)])
self.assertIs(pulse, X_pulse)
with self.assertWarns(UserWarning):
pulse = ff.extend([(XZ_pulse, (0, 1))])
self.assertIs(pulse, XZ_pulse)
# Test mapping two single-qubit pulses to a two-qubit pulse
XZ_pulse_ext = ff.extend([
(X_pulse, 0, {'X': 'XI', 'Y': 'YI', 'Z': 'ZI'}),
(Z_pulse, 1, {'X': 'IX', 'Y': 'IY', 'Z': 'IZ'})
])
self.assertEqual(XZ_pulse, XZ_pulse_ext)
self.assertCorrectDiagonalization(XZ_pulse_ext, atol=1e-14)
self.assertArrayAlmostEqual(XZ_pulse._propagators,
XZ_pulse_ext._propagators, atol=1e-10)
self.assertArrayAlmostEqual(XZ_pulse._control_matrix,
XZ_pulse_ext._control_matrix, atol=1e-9)
self.assertArrayAlmostEqual(XZ_pulse._filter_function,
XZ_pulse_ext._filter_function, atol=1e-9)
# Test additional noise Hamiltonian
add_H_n = list(zip((XXX,), np.ones((1, n_dt)), ['XXX']))
XYZ_pulse_ext = ff.extend(
[(XZ_pulse, (0, 2),
{i: i[0] + 'I' + i[1] for i in XZ_pulse.n_oper_identifiers}),
(Y_pulse, 1,
{i: 'I' + i[0] + 'I' for i in Y_pulse.n_oper_identifiers})],
additional_noise_Hamiltonian=add_H_n
)
self.assertEqual(XYZ_pulse, XYZ_pulse_ext)
self.assertCorrectDiagonalization(XYZ_pulse_ext, atol=1e-14)
self.assertArrayAlmostEqual(XYZ_pulse._propagators,
XYZ_pulse_ext._propagators, atol=1e-10)
self.assertArrayAlmostEqual(XYZ_pulse._control_matrix,
XYZ_pulse_ext._control_matrix, atol=1e-9)
self.assertArrayAlmostEqual(XYZ_pulse._filter_function,
XYZ_pulse_ext._filter_function, atol=1e-9)
# Test remapping a two-qubit pulse
ZYX_pulse_ext = ff.extend(
[(XZ_pulse, (2, 0),
{i: i[1] + 'I' + i[0] for i in XZ_pulse.n_oper_identifiers}),
(Y_pulse, 1,
{i: 'I' + i[0] + 'I' for i in Y_pulse.n_oper_identifiers})],
)
self.assertEqual(ZYX_pulse, ZYX_pulse_ext)
self.assertCorrectDiagonalization(ZYX_pulse_ext, atol=1e-14)
self.assertArrayAlmostEqual(ZYX_pulse._propagators,
ZYX_pulse_ext._propagators, atol=1e-10)
self.assertArrayAlmostEqual(ZYX_pulse._control_matrix,
ZYX_pulse_ext._control_matrix, atol=1e-9)
self.assertArrayAlmostEqual(ZYX_pulse._filter_function,
ZYX_pulse_ext._filter_function, atol=1e-9)
XZXZ_pulse_ext = ff.extend([
(XZ_pulse, (0, 1),
{i: i + 'II' for i in XZ_pulse.n_oper_identifiers}),
(XZ_pulse, (2, 3),
{i: 'II' + i for i in XZ_pulse.n_oper_identifiers})
], cache_diagonalization=True)
self.assertEqual(XZXZ_pulse, XZXZ_pulse_ext)
self.assertCorrectDiagonalization(XZXZ_pulse_ext, atol=1e-14)
self.assertArrayAlmostEqual(XZXZ_pulse._propagators,
XZXZ_pulse_ext._propagators, atol=1e-10)
self.assertArrayAlmostEqual(XZXZ_pulse._control_matrix,
XZXZ_pulse_ext._control_matrix, atol=1e-9)
self.assertArrayAlmostEqual(XZXZ_pulse._filter_function,
XZXZ_pulse_ext._filter_function, atol=1e-8)
XZXZ_pulse_ext = ff.extend([
(XZ_pulse, (0, 1),
{i: i + 'II' for i in XZ_pulse.n_oper_identifiers}),
(XZ_pulse, (2, 3),
{i: 'II' + i for i in XZ_pulse.n_oper_identifiers})
], cache_diagonalization=False)
self.assertEqual(XZXZ_pulse, XZXZ_pulse_ext)
self.assertArrayAlmostEqual(XZXZ_pulse._total_propagator,
XZXZ_pulse_ext._total_propagator,
atol=1e-10)
# Test merging with overlapping qubit ranges
XXZZ_pulse_ext = ff.extend([
(XZ_pulse, (0, 2),
{i: i[0] + 'I' + i[1] + 'I'
for i in XZ_pulse.n_oper_identifiers}),
(XZ_pulse, (1, 3),
{i: 'I' + i[0] + 'I' + i[1]
for i in XZ_pulse.n_oper_identifiers}),
])
self.assertEqual(XXZZ_pulse, XXZZ_pulse_ext)
self.assertCorrectDiagonalization(XXZZ_pulse_ext, atol=1e-14)
self.assertArrayAlmostEqual(XXZZ_pulse._propagators,
XXZZ_pulse_ext._propagators, atol=1e-10)
self.assertArrayAlmostEqual(XXZZ_pulse._control_matrix,
XXZZ_pulse_ext._control_matrix, atol=1e-10)
self.assertArrayAlmostEqual(XXZZ_pulse._filter_function,
XXZZ_pulse_ext._filter_function, atol=1e-8)
def test_extend_with_identity(self):
"""Test extending a pulse to more qubits"""
ID, X, Y, Z = util.paulis
n_dt = 10
coeffs = rng.standard_normal((3, n_dt))
ids = ['X', 'Y', 'Z']
pulse = ff.PulseSequence(
list(zip((X, Y, Z), coeffs, ids)),
list(zip((X, Y, Z), np.ones((3, n_dt)), ids)),
np.ones(n_dt), basis=ff.Basis.pauli(1)
)
omega = util.get_sample_frequencies(pulse, spacing='log', n_samples=50)
for N in rng.randint(2, 5, 4):
for target in rng.randint(0, N-1, 2):
pulse.cleanup('all')
ext_opers = util.tensor(*np.insert(np.tile(ID, (N-1, 3, 1, 1)),
target, (X, Y, Z), axis=0))
# By default, extend should add the target qubit as suffix to
# identifiers
ext_ids = [i + f'_{target}' for i in ids]
ext_pulse = ff.PulseSequence(
list(zip(ext_opers, coeffs, ext_ids)),
list(zip(ext_opers, np.ones((3, n_dt)), ext_ids)),
np.ones(n_dt), basis=ff.Basis.pauli(N)
)
# Use custom mapping for identifiers and or labels
letters = rng.choice(list(string.ascii_letters), size=(3, 5))
mapped_ids = np.array([''.join(l) for l in letters])
mapping = {i: new_id for i, new_id in zip(ids, mapped_ids)}
ext_pulse_mapped_identifiers = ff.PulseSequence(
list(zip(ext_opers, coeffs, mapped_ids, ext_ids)),
list(zip(ext_opers, np.ones((3, n_dt)), mapped_ids,
ext_ids)),
np.ones(n_dt), basis=ff.Basis.pauli(N)
)
ext_pulse_mapped_labels = ff.PulseSequence(
list(zip(ext_opers, coeffs, ext_ids, mapped_ids)),
list(zip(ext_opers, np.ones((3, n_dt)), ext_ids,
mapped_ids)),
np.ones(n_dt), basis=ff.Basis.pauli(N)
)
ext_pulse_mapped_identifiers_labels = ff.PulseSequence(
list(zip(ext_opers, coeffs, mapped_ids)),
list(zip(ext_opers, np.ones((3, n_dt)), mapped_ids)),
np.ones(n_dt), basis=ff.Basis.pauli(N)
)
calc_filter_functionF = rng.randint(0, 2)
if calc_filter_functionF:
# Expect things to be cached in extended pulse if original
# also was cached
pulse.cache_filter_function(omega)
ext_pulse.cache_filter_function(omega)
test_ext_pulse = ff.extend([(pulse, target)], N, d_per_qubit=2)
test_ext_pulse_mapped_identifiers = ff.extend(
[(pulse, target, mapping)], N, d_per_qubit=2
)
test_ext_pulse_mapped_labels = ff.extend(
[(pulse, target, None, mapping)], N, d_per_qubit=2
)
test_ext_pulse_mapped_identifiers_labels = ff.extend(
[(pulse, target, mapping, mapping)], N, d_per_qubit=2
)
self.assertEqual(ext_pulse, test_ext_pulse)
self.assertEqual(ext_pulse_mapped_identifiers,
test_ext_pulse_mapped_identifiers)
self.assertEqual(ext_pulse_mapped_labels,
test_ext_pulse_mapped_labels)
self.assertEqual(ext_pulse_mapped_identifiers_labels,
test_ext_pulse_mapped_identifiers_labels)
if calc_filter_functionF:
self.assertCorrectDiagonalization(test_ext_pulse,
atol=1e-14)
self.assertArrayAlmostEqual(test_ext_pulse._propagators,
ext_pulse._propagators, atol=1e-14)
self.assertArrayAlmostEqual(
test_ext_pulse._total_propagator_liouville,
ext_pulse._total_propagator_liouville,
atol=1e-14
)
self.assertArrayAlmostEqual(
test_ext_pulse._total_propagator,
ext_pulse._total_propagator,
atol=1e-14
)
self.assertArrayAlmostEqual(test_ext_pulse._total_phases,
ext_pulse._total_phases)
self.assertArrayAlmostEqual(test_ext_pulse._control_matrix,
ext_pulse._control_matrix, atol=1e-12)
self.assertArrayAlmostEqual(
test_ext_pulse._filter_function,
ext_pulse._filter_function,
atol=1e-12
)
else:
self.assertIsNone(test_ext_pulse._eigvals)
self.assertIsNone(test_ext_pulse._eigvecs)
self.assertIsNone(test_ext_pulse._propagators)
self.assertIsNone(
test_ext_pulse._total_propagator_liouville)
self.assertIsNone(test_ext_pulse._total_propagator)
self.assertIsNone(test_ext_pulse._total_phases)
self.assertIsNone(test_ext_pulse._control_matrix)
self.assertIsNone(test_ext_pulse._filter_function)
pulse.cleanup('all')
ext_pulse.cleanup('all')