def qfunc():
qml.Hadamard(wires=0)
qml.Barrier(only_visual=True, wires=0)
qml.Barrier(wires=0)
qml.Hadamard(wires=0)
return qml.expval(qml.PauliZ(0))
def qfunc():
qml.Hadamard(wires=0)
qml.Barrier(wires=0)
qml.Barrier(wires=0)
qml.Hadamard(wires=0)
return qml.expval(qml.PauliZ(0))
def test_barrier_only_visual(self):
"""Test the barrier is always drawn"""
ops = [
qml.PauliX(0),
qml.Barrier(wires=0),
qml.Barrier(only_visual=True, wires=0),
qml.PauliX(0),
]
layers = drawable_layers(ops)
assert layers == [{ops[0]}, {ops[1]}, {ops[2]}, {ops[3]}]
def test_Barrier(self):
"""Test Barrier gets correct special call."""
with QuantumTape() as tape:
qml.Barrier(wires=(0, 1, 2))
_, ax = tape_mpl(tape)
layer = 0
assert len(ax.lines) == 3
assert len(ax.collections) == 2
plt.close()
def test_barrier_block(self):
"""Test the barrier blocking operators"""
ops = [qml.PauliX(0), qml.Barrier(wires=[0, 1]), qml.PauliX(1)]
layers = drawable_layers(ops)
assert layers == [{ops[0]}, {ops[1]}, {ops[2]}]
"RZ": qml.RZ(0, wires=[0]), "Rot": qml.Rot(0, 0, 0, wires=[0]), "S": qml.S(wires=[0]), "SWAP": qml.SWAP(wires=[0, 1]), "ISWAP": qml.ISWAP(wires=[0, 1]), "T": qml.T(wires=[0]), "SX": qml.SX(wires=[0]), "Barrier": qml.Barrier(wires=[0, 1, 2]), "Toffoli": qml.Toffoli(wires=[0, 1, 2]), "QFT": qml.templates.QFT(wires=[0, 1, 2]), "IsingXX": qml.IsingXX(0, wires=[0, 1]), "IsingYY": qml.IsingYY(0, wires=[0, 1]), "IsingZZ": qml.IsingZZ(0, wires=[0, 1]), "SingleExcitation": qml.SingleExcitation(0, wires=[0, 1]), "SingleExcitationPlus": qml.SingleExcitationPlus(0, wires=[0, 1]), "SingleExcitationMinus":
def barrier():
qml.PauliX(wires=0)
qml.Barrier(wires=[0, 1])
qml.CNOT(wires=[0, 1])
(qml.PauliY(0), "Y", "Y"),
(qml.PauliZ(0), "Z", "Z"),
(qml.S(wires=0), "S", "S⁻¹"),
(qml.T(wires=0), "T", "T⁻¹"),
(qml.SX(wires=0), "SX", "SX⁻¹"),
(qml.CNOT(wires=(0, 1)), "⊕", "⊕"),
(qml.CZ(wires=(0, 1)), "Z", "Z"),
(qml.CY(wires=(0, 1)), "Y", "Y"),
(qml.SWAP(wires=(0, 1)), "SWAP", "SWAP⁻¹"),
(qml.ISWAP(wires=(0, 1)), "ISWAP", "ISWAP⁻¹"),
(qml.SISWAP(wires=(0, 1)), "SISWAP", "SISWAP⁻¹"),
(qml.SQISW(wires=(0, 1)), "SISWAP", "SISWAP⁻¹"),
(qml.CSWAP(wires=(0, 1, 2)), "SWAP", "SWAP"),
(qml.Toffoli(wires=(0, 1, 2)), "⊕", "⊕"),
(qml.MultiControlledX(control_wires=(0, 1, 2), wires=(3)), "⊕", "⊕"),
(qml.Barrier(0), "||", "||"),
(qml.WireCut(wires=0), "//", "//"),
]
@pytest.mark.parametrize("op, label1, label2", label_data)
def test_label_method(op, label1, label2):
assert op.label() == label1
assert op.label(decimals=2) == label1
op.inv()
assert op.label() == label2
control_data = [
(qml.Identity(0), Wires([])),