def circuit(x=None):
qml.DisplacementEmbedding(features=x, wires=range(n_wires), method="phase", c=1.0)
qml.Beamsplitter(np.pi / 2, 0, wires=[0, 1])
qml.DisplacementEmbedding(features=[0, 0], wires=range(n_wires), method="phase", c=1.0)
return [
qml.expval(qml.NumberOperator(wires=0)),
qml.expval(qml.NumberOperator(wires=1)),
]
def test_expansion(self, features):
"""Checks the queue for the default settings."""
op = qml.DisplacementEmbedding(features=features, wires=range(3))
tape = op.expand()
assert len(tape.operations) == len(features)
for idx, gate in enumerate(tape.operations):
assert gate.name == "Displacement"
assert gate.parameters[0] == features[idx]
def circuit2():
qml.DisplacementEmbedding(features, wires=["z", "a", "k"])
return qml.expval(qml.Identity("z"))
def circuit():
qml.DisplacementEmbedding(features, wires=range(3))
return qml.expval(qml.Identity(0))
def circuit(x=None):
qml.DisplacementEmbedding(features=x, wires=range(n_wires), method="amplitude", c=1.0)
return [
qml.expval(qml.NumberOperator(wires=0)),
qml.expval(qml.NumberOperator(wires=1)),
]
def circuit_template(features):
qml.DisplacementEmbedding(features, range(3))
qml.Beamsplitter(0.5, 0, wires=[2, 1])
qml.Beamsplitter(0.5, 0, wires=[1, 0])
return qml.expval(qml.X(0))
def test_id(self):
"""Tests that the id attribute can be set."""
template = qml.DisplacementEmbedding(np.array([1, 2]), wires=[0, 1], id="a")
assert template.id == "a"
def circuit(x=None):
qml.DisplacementEmbedding(features=x, wires=[0, 1])
return qml.expval(qml.X(0))
def circuit(x=None):
qml.DisplacementEmbedding(features=x, wires=range(n_wires), method="A")
return [qml.expval(qml.X(i)) for i in range(n_wires)]