def test_expansion(self, n_wires, expected_names, expected_wires):
"""Checks the queue for the default settings."""
features = list(range(n_wires))
op = qml.IQPEmbedding(features, wires=range(n_wires))
tape = op.expand()
for i, gate in enumerate(tape.operations):
assert gate.name == expected_names[i]
assert gate.wires.labels == tuple(expected_wires[i])
def test_repeat(self):
"""Checks the queue for repetition of the template."""
features = list(range(3))
expected_names = self.QUEUES[2][1] + self.QUEUES[2][1]
expected_wires = self.QUEUES[2][2] + self.QUEUES[2][2]
op = qml.IQPEmbedding(features, wires=range(3), n_repeats=2)
tape = op.expand()
for i, gate in enumerate(tape.operations):
assert gate.name == expected_names[i]
assert gate.wires.labels == tuple(expected_wires[i])
def test_custom_pattern(self):
"""Checks the queue for custom pattern for the entanglers."""
features = list(range(3))
pattern = [[0, 2], [0, 1]]
expected_names = [
"Hadamard",
"RZ",
"Hadamard",
"RZ",
"Hadamard",
"RZ",
"MultiRZ",
"MultiRZ",
"MultiRZ",
]
expected_wires = [[0], [0], [1], [1], [2], [2], *pattern]
op = qml.IQPEmbedding(features, wires=range(3), pattern=pattern)
tape = op.expand()
for i, gate in enumerate(tape.operations):
assert gate.name == expected_names[i]
assert gate.wires.labels == tuple(expected_wires[i])
def circuit():
qml.IQPEmbedding(features, wires=range(3))
return qml.expval(qml.Identity(0))
def circuit_template(features):
qml.IQPEmbedding(features, range(2))
return qml.expval(qml.PauliZ(0))
def test_id(self):
"""Tests that the id attribute can be set."""
template = qml.IQPEmbedding(np.array([1, 2]), wires=[0, 1], id="a")
assert template.id == "a"
def circuit(f=None):
qml.IQPEmbedding(features=f, wires=range(3))
return [qml.expval(qml.PauliZ(w)) for w in range(3)]
def circuit2():
qml.IQPEmbedding(features, wires=["z", "a", "k"])
return qml.expval(qml.Identity("z"))