def __init__(self,
kak_basis_gate=None,
force_consolidate=False,
basis_gates=None):
"""ConsolidateBlocks initializer.
Args:
kak_basis_gate (Gate): Basis gate for KAK decomposition.
force_consolidate (bool): Force block consolidation
basis_gates (List(str)): Basis gates from which to choose a KAK gate.
"""
super().__init__()
self.basis_gates = basis_gates
self.force_consolidate = force_consolidate
if kak_basis_gate is not None:
self.decomposer = TwoQubitBasisDecomposer(kak_basis_gate)
elif basis_gates is not None:
kak_basis_gate = unitary_synthesis._choose_kak_gate(basis_gates)
if kak_basis_gate is not None:
self.decomposer = TwoQubitBasisDecomposer(kak_basis_gate)
else:
self.decomposer = None
else:
self.decomposer = TwoQubitBasisDecomposer(CXGate())
def __init__(self,
kak_basis_gate=None,
force_consolidate=False,
basis_gates=None,
target=None):
"""ConsolidateBlocks initializer.
Args:
kak_basis_gate (Gate): Basis gate for KAK decomposition.
force_consolidate (bool): Force block consolidation
basis_gates (List(str)): Basis gates from which to choose a KAK gate.
target (Target): The target object for the compilation target backend
"""
super().__init__()
self.basis_gates = None
self.target = target
if basis_gates is not None:
self.basis_gates = set(basis_gates)
self.force_consolidate = force_consolidate
if kak_basis_gate is not None:
self.decomposer = TwoQubitBasisDecomposer(kak_basis_gate)
elif basis_gates is not None:
self.decomposer = unitary_synthesis._basis_gates_to_decomposer_2q(
basis_gates)
else:
self.decomposer = TwoQubitBasisDecomposer(CXGate())
def test_exact_supercontrolled_decompose_random(self, nsamples=100):
"""Verify exact decomposition for random supercontrolled basis and random target"""
for _ in range(nsamples):
k1 = np.kron(random_unitary(2).data, random_unitary(2).data)
k2 = np.kron(random_unitary(2).data, random_unitary(2).data)
basis_unitary = k1 @ Ud(np.pi/4, 0, 0) @ k2
decomposer = TwoQubitBasisDecomposer(UnitaryGate(basis_unitary))
self.check_exact_decomposition(random_unitary(4).data, decomposer)
def __init__(self, kak_basis_gate=CnotGate(), force_consolidate=False):
"""
Args:
kak_basis_gate (Gate): Basis gate for KAK decomposition.
force_consolidate (bool): Force block consolidation
"""
super().__init__()
self.force_consolidate = force_consolidate
self.decomposer = TwoQubitBasisDecomposer(kak_basis_gate)
def __init__(self, kak_basis_gate=CXGate(), force_consolidate=False):
"""ConsolidateBlocks initializer.
Args:
kak_basis_gate (Gate): Basis gate for KAK decomposition.
force_consolidate (bool): Force block consolidation
"""
super().__init__()
self.force_consolidate = force_consolidate
if kak_basis_gate is not None:
self.decomposer = TwoQubitBasisDecomposer(kak_basis_gate)
else:
self.decomposer = None
def test_exact_nonsupercontrolled_decompose(self):
"""Check that the nonsupercontrolled basis throws a warning"""
with self.assertWarns(UserWarning, msg="Supposed to warn when basis non-supercontrolled"):
TwoQubitBasisDecomposer(UnitaryGate(Ud(np.pi/4, 0.2, 0.1)))