def circuit2superop(circuit, min_qubits=1):
"""Return the SuperOp for a standard instruction."""
# Get number of qubits
max_qubits = 1
for instr in circuit:
qubits = []
if hasattr(instr, 'qubits'):
qubits = instr.qubits
elif isinstance(instr, dict):
qubits = instr.get('qubits', [])
max_qubits = max(max_qubits, 1 + max(qubits))
num_qubits = max(max_qubits, min_qubits)
# Initialize N-qubit identity superoperator
superop = SuperOp(np.eye(4**num_qubits))
# compose each circuit element with the superoperator
for instr in circuit:
instr_op = standard_instruction_channel(instr)
if instr_op is None:
raise NoiseError('Cannot convert instruction {} to SuperOp'.format(instr))
if hasattr(instr, 'qubits'):
qubits = instr.qubits
else:
qubits = instr['qubits']
superop = superop.compose(instr_op, qubits)
return superop
def circuit2superop(circuit, min_qubits=1):
"""Return the SuperOp for a standard instruction."""
warnings.warn(
'circuit2superop has been deprecated as of qiskit-aer 0.10.0'
' and will be removed no earlier than 3 months from that release date.',
DeprecationWarning, stacklevel=2)
# Get number of qubits
max_qubits = 1
for instr in circuit:
qubits = []
if hasattr(instr, 'qubits'):
qubits = instr.qubits
elif isinstance(instr, dict):
qubits = instr.get('qubits', [])
max_qubits = max(max_qubits, 1 + max(qubits))
num_qubits = max(max_qubits, min_qubits)
# Initialize N-qubit identity superoperator
superop = SuperOp(np.eye(4**num_qubits))
# compose each circuit element with the superoperator
for instr in circuit:
instr_op = standard_instruction_channel(instr)
if instr_op is None:
raise NoiseError('Cannot convert instruction {} to SuperOp'.format(instr))
if hasattr(instr, 'qubits'):
qubits = instr.qubits
else:
qubits = instr['qubits']
superop = superop.compose(instr_op, qubits)
return superop
def circuit2superop(circuit, min_qubits=1):
"""Return the SuperOp for a standard instruction."""
# Get number of qubits
max_qubits = 1
for instr in circuit:
qubits = []
if hasattr(instr, 'qubits'):
qubits = instr.qubits
elif isinstance(instr, dict):
qubits = instr.get('qubits', [])
max_qubits = max(max_qubits, 1 + max(qubits))
num_qubits = max(max_qubits, min_qubits)
# Initialize N-qubit identity superoperator
superop = SuperOp(np.eye(4**num_qubits))
# compose each circuit element with the superoperator
for instr in circuit:
name = None
qubits = None
params = None
if isinstance(instr, dict):
# Parse from plain dictionary qobj instruction
name = instr['name']
qubits = instr.get('qubits')
params = instr.get('params')
else:
# Parse from QasmQobjInstruction
if hasattr(instr, 'name'):
name = instr.name
if hasattr(instr, 'qubits'):
qubits = instr.qubits
if hasattr(instr, 'params'):
params = instr.params
if name is 'reset':
instr_op = reset_superop(len(qubits))
elif name is 'kraus':
instr_op = Kraus(params)
else:
instr_op = SuperOp(standard_instruction_operator(name, params))
superop = superop.compose(instr_op, qubits=qubits)
return superop