def test_saving_and_loading_e2e(self):
backend = BasicAer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 1, initial_state=init_state)
optimizer = L_BFGS_B(maxiter=10)
algo = VQE(self.algo_input.qubit_op, var_form, optimizer)
with tempfile.NamedTemporaryFile(suffix='.inp',
delete=True) as cache_tmp_file:
cache_tmp_file_name = cache_tmp_file.name
quantum_instance_caching = QuantumInstance(
backend,
circuit_caching=True,
cache_file=cache_tmp_file_name,
skip_qobj_deepcopy=True,
skip_qobj_validation=True,
optimization_level=self.optimization_level)
algo.run(quantum_instance_caching)
self.assertLessEqual(quantum_instance_caching.circuit_cache.misses,
0)
is_file_exist = os.path.exists(cache_tmp_file_name)
self.assertTrue(is_file_exist,
"Does not store content successfully.")
circuit_cache_new = CircuitCache(skip_qobj_deepcopy=True,
cache_file=cache_tmp_file_name)
self.assertEqual(quantum_instance_caching.circuit_cache.mappings,
circuit_cache_new.mappings)
self.assertLessEqual(circuit_cache_new.misses, 0)
def test_vqe_callback(self, var_form_type):
""" VQE Callback test """
history = {'eval_count': [], 'parameters': [], 'mean': [], 'std': []}
def store_intermediate_result(eval_count, parameters, mean, std):
history['eval_count'].append(eval_count)
history['parameters'].append(parameters)
history['mean'].append(mean)
history['std'].append(std)
backend = BasicAer.get_backend('qasm_simulator')
num_qubits = self.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, depth=1, initial_state=init_state)
if var_form_type is QuantumCircuit:
params = ParameterVector('θ', var_form.num_parameters)
var_form = var_form.construct_circuit(params)
optimizer = COBYLA(maxiter=3)
algo = VQE(self.qubit_op, var_form, optimizer,
callback=store_intermediate_result, auto_conversion=False)
aqua_globals.random_seed = 50
quantum_instance = QuantumInstance(backend,
seed_transpiler=50,
shots=1024,
seed_simulator=50)
algo.run(quantum_instance)
self.assertTrue(all(isinstance(count, int) for count in history['eval_count']))
self.assertTrue(all(isinstance(mean, float) for mean in history['mean']))
self.assertTrue(all(isinstance(std, float) for std in history['std']))
for params in history['parameters']:
self.assertTrue(all(isinstance(param, float) for param in params))
def test_saving_and_loading(self):
backend = BasicAer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op, var_form, optimizer, 'matrix')
fd, cache_tmp_file = tempfile.mkstemp(suffix='.inp')
os.close(fd)
quantum_instance_caching = QuantumInstance(backend,
circuit_caching=True,
cache_file=cache_tmp_file,
skip_qobj_deepcopy=True,
skip_qobj_validation=True)
algo.run(quantum_instance_caching)
self.assertLessEqual(quantum_instance_caching.circuit_cache.misses, 0)
is_file_exist = os.path.exists(cache_tmp_file)
self.assertTrue(is_file_exist, "Does not store content successfully.")
circuit_cache_new = CircuitCache(skip_qobj_deepcopy=True,
cache_file=cache_tmp_file)
self.assertEqual(quantum_instance_caching.circuit_cache.mappings,
circuit_cache_new.mappings)
self.assertLessEqual(circuit_cache_new.misses, 0)
if is_file_exist:
os.remove(cache_tmp_file)
def test_vqe_caching_direct(self, max_evals_grouped):
self._build_refrence_result(backends=['statevector_simulator'])
backend = BasicAer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op,
var_form,
optimizer,
max_evals_grouped=max_evals_grouped)
quantum_instance_caching = QuantumInstance(
backend,
circuit_caching=True,
skip_qobj_deepcopy=True,
skip_qobj_validation=True,
optimization_level=self.optimization_level)
result_caching = algo.run(quantum_instance_caching)
self.assertLessEqual(quantum_instance_caching.circuit_cache.misses, 0)
self.assertAlmostEqual(
self.reference_vqe_result['statevector_simulator']['energy'],
result_caching['energy'])
speedup_min = 3
speedup = result_caching['eval_time'] / self.reference_vqe_result[
'statevector_simulator']['eval_time']
self.assertLess(speedup, speedup_min)
def test_vqe_caching_direct(self, batch_mode=True):
backend = BasicAer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op,
var_form,
optimizer,
'matrix',
batch_mode=batch_mode)
quantum_instance_caching = QuantumInstance(backend,
circuit_caching=True,
skip_qobj_deepcopy=True,
skip_qobj_validation=True)
result_caching = algo.run(quantum_instance_caching)
self.assertLessEqual(quantum_instance_caching.circuit_cache.misses, 0)
self.assertAlmostEqual(
self.reference_vqe_result['statevector_simulator']['energy'],
result_caching['energy'])
speedup_check = 3
self.log.info(
result_caching['eval_time'],
self.reference_vqe_result['statevector_simulator']['eval_time'] /
speedup_check)
def test_state_preparation_type_error(self):
"""Test InitialState state_preparation with QuantumCircuit oracle"""
init_state = Zero(2)
oracle = QuantumCircuit(2)
oracle.cz(0, 1)
with self.assertRaises(TypeError):
Grover(oracle=oracle, state_preparation=init_state)
def test_qubits_5_vector(self):
self.zero = Zero(5)
cct = self.zero.construct_circuit('vector')
np.testing.assert_array_equal(cct, [1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0])
def test_qubits_5_circuit(self):
""" Qubits 5 circuit test """
zero = Zero(5)
cct = zero.construct_circuit('circuit')
# pylint: disable=no-member
self.assertEqual(cct.qasm(),
'OPENQASM 2.0;\ninclude "qelib1.inc";\nqreg q[5];\n')
def test_qaoa_initial_state(self, w, init_state):
""" QAOA initial state test """
optimizer = COBYLA()
qubit_op, _ = max_cut.get_operator(w)
init_pt = [0.0, 0.0] # Avoid generating random initial point
if init_state is None:
initial_state = None
else:
initial_state = Custom(num_qubits=4, state_vector=init_state)
quantum_instance = QuantumInstance(
BasicAer.get_backend('statevector_simulator'))
qaoa_zero_init_state = QAOA(qubit_op,
optimizer,
initial_point=init_pt,
initial_state=Zero(qubit_op.num_qubits),
quantum_instance=quantum_instance)
qaoa = QAOA(qubit_op,
optimizer,
initial_point=init_pt,
initial_state=initial_state,
quantum_instance=quantum_instance)
zero_circuits = qaoa_zero_init_state.construct_circuit(init_pt)
custom_circuits = qaoa.construct_circuit(init_pt)
self.assertEqual(len(zero_circuits), len(custom_circuits))
backend = BasicAer.get_backend('statevector_simulator')
for zero_circ, custom_circ in zip(zero_circuits, custom_circuits):
z_length = len(zero_circ.data)
c_length = len(custom_circ.data)
self.assertGreaterEqual(c_length, z_length)
self.assertTrue(zero_circ.data == custom_circ.data[-z_length:])
custom_init_qc = custom_circ.copy()
custom_init_qc.data = custom_init_qc.data[0:c_length - z_length]
if initial_state is None:
original_init_qc = QuantumCircuit(qubit_op.num_qubits)
original_init_qc.h(range(qubit_op.num_qubits))
else:
original_init_qc = initial_state.construct_circuit()
job_init_state = execute(original_init_qc, backend)
job_qaoa_init_state = execute(custom_init_qc, backend)
statevector_original = job_init_state.result().get_statevector(
original_init_qc)
statevector_custom = job_qaoa_init_state.result().get_statevector(
custom_init_qc)
self.assertEqual(statevector_original.tolist(),
statevector_custom.tolist())
def test_vqe_callback(self):
tmp_filename = 'vqe_callback_test.csv'
is_file_exist = os.path.exists(self._get_resource_path(tmp_filename))
if is_file_exist:
os.remove(self._get_resource_path(tmp_filename))
def store_intermediate_result(eval_count, parameters, mean, std):
with open(self._get_resource_path(tmp_filename), 'a') as f:
content = "{},{},{:.5f},{:.5f}".format(eval_count, parameters,
mean, std)
print(content, file=f, flush=True)
backend = get_aer_backend('qasm_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 1, initial_state=init_state)
optimizer = COBYLA(maxiter=3)
algo = VQE(self.algo_input.qubit_op,
var_form,
optimizer,
'paulis',
callback=store_intermediate_result)
algo.random_seed = 50
run_config = RunConfig(shots=1024, seed=50)
quantum_instance = QuantumInstance(backend,
seed_mapper=50,
run_config=run_config)
algo.run(quantum_instance)
is_file_exist = os.path.exists(self._get_resource_path(tmp_filename))
self.assertTrue(is_file_exist, "Does not store content successfully.")
# check the content
ref_content = [[
"1", "[-0.03391886 -1.70850424 -1.53640265 -0.65137839]",
"-0.59622", "0.01546"
],
[
"2",
"[ 0.96608114 -1.70850424 -1.53640265 -0.65137839]",
"-0.77452", "0.01692"
],
[
"3",
"[ 0.96608114 -0.70850424 -1.53640265 -0.65137839]",
"-0.80327", "0.01519"
]]
with open(self._get_resource_path(tmp_filename)) as f:
idx = 0
for record in f.readlines():
eval_count, parameters, mean, std = record.split(",")
self.assertEqual(eval_count.strip(), ref_content[idx][0])
self.assertEqual(parameters, ref_content[idx][1])
self.assertEqual(mean.strip(), ref_content[idx][2])
self.assertEqual(std.strip(), ref_content[idx][3])
idx += 1
if is_file_exist:
os.remove(self._get_resource_path(tmp_filename))
def test_vqe_callback(self):
""" VQE Callback test """
tmp_filename = 'vqe_callback_test.csv'
is_file_exist = os.path.exists(self.get_resource_path(tmp_filename))
if is_file_exist:
os.remove(self.get_resource_path(tmp_filename))
def store_intermediate_result(eval_count, parameters, mean, std):
with open(self.get_resource_path(tmp_filename), 'a') as file:
content = "{},{},{:.5f},{:.5f}".format(eval_count, parameters, mean, std)
print(content, file=file, flush=True)
backend = BasicAer.get_backend('qasm_simulator')
num_qubits = self.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 1, initial_state=init_state)
optimizer = COBYLA(maxiter=3)
algo = VQE(self.qubit_op, var_form, optimizer,
callback=store_intermediate_result, auto_conversion=False)
aqua_globals.random_seed = 50
quantum_instance = QuantumInstance(backend,
seed_transpiler=50,
shots=1024,
seed_simulator=50)
algo.run(quantum_instance)
is_file_exist = os.path.exists(self.get_resource_path(tmp_filename))
self.assertTrue(is_file_exist, "Does not store content successfully.")
# check the content
ref_content = [['1',
'[-0.03391886 -1.70850424 -1.53640265 -0.65137839]',
'-0.61121', '0.01572'],
['2',
'[ 0.96608114 -1.70850424 -1.53640265 -0.65137839]',
'-0.79235', '0.01722'],
['3',
'[ 0.96608114 -0.70850424 -1.53640265 -0.65137839]',
'-0.82829', '0.01529']
]
try:
with open(self.get_resource_path(tmp_filename)) as file:
idx = 0
for record in file.readlines():
eval_count, parameters, mean, std = record.split(",")
self.assertEqual(eval_count.strip(), ref_content[idx][0])
self.assertEqual(parameters, ref_content[idx][1])
self.assertEqual(mean.strip(), ref_content[idx][2])
self.assertEqual(std.strip(), ref_content[idx][3])
idx += 1
finally:
if is_file_exist:
os.remove(self.get_resource_path(tmp_filename))
def test_vqe_direct(self, max_evals_grouped):
backend = BasicAer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op, var_form, optimizer, 'paulis', max_evals_grouped=max_evals_grouped)
quantum_instance = QuantumInstance(backend)
result = algo.run(quantum_instance)
self.assertAlmostEqual(result['energy'], -1.85727503)
if quantum_instance.has_circuit_caching:
self.assertLess(quantum_instance._circuit_cache.misses, 3)
def test_vqe_direct(self, batch_mode):
backend = get_aer_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op,
var_form,
optimizer,
'paulis',
batch_mode=batch_mode)
quantum_instance = QuantumInstance(backend)
result = algo.run(quantum_instance)
self.assertAlmostEqual(result['energy'], -1.85727503)
def test_vqe_aer_mode(self):
try:
from qiskit import Aer
except Exception as e:
self.skipTest("Aer doesn't appear to be installed. Error: '{}'".format(str(e)))
return
backend = Aer.get_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op, var_form, optimizer, max_evals_grouped=1)
quantum_instance = QuantumInstance(backend)
result = algo.run(quantum_instance)
self.assertAlmostEqual(result['energy'], -1.85727503, places=6)
def test_state_preparation_type_error(self):
"""Test InitialState state_preparation with QuantumCircuit oracle"""
init_state = Zero(2)
oracle = QuantumCircuit(2)
oracle.cz(0, 1)
# filtering the following:
# DeprecationWarning: Passing an InitialState component is deprecated as of 0.8.0,
# and will be removed no earlier than 3 months after the release date.
# You should pass a QuantumCircuit instead.
try:
warnings.filterwarnings(action="ignore", category=DeprecationWarning)
with self.assertRaises(TypeError):
Grover(oracle=oracle, state_preparation=init_state)
finally:
warnings.filterwarnings(action="always", category=DeprecationWarning)
def test_vqe_qasm_snapshot_mode(self):
""" VQE Aer qasm_simulator snapshot mode test """
try:
# pylint: disable=import-outside-toplevel
from qiskit import Aer
except Exception as ex: # pylint: disable=broad-except
self.skipTest("Aer doesn't appear to be installed. Error: '{}'".format(str(ex)))
return
backend = Aer.get_backend('qasm_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op, var_form, optimizer, max_evals_grouped=1)
quantum_instance = QuantumInstance(backend, shots=1)
result = algo.run(quantum_instance)
self.assertAlmostEqual(result['energy'], -1.85727503, places=6)
def __init__(
self,
operator_pool: OperatorPool,
initial_state: Union[InitialState, None],
vqe_optimizer: Optimizer,
hamiltonian: BaseOperator,
max_iters: int = 10,
grad_tol: float = 1e-3,
max_evals_grouped=1,
aux_operators=None,
auto_conversion=True,
use_zero_initial_parameters=False
):
super().__init__()
self.operator_pool = copy.deepcopy(operator_pool)
if initial_state is None:
self.initial_state = Zero(num_qubits=operator_pool.num_qubits)
else:
self.initial_state = initial_state
self.vqe_optimizer = vqe_optimizer
self.hamiltonian = hamiltonian
self.max_iters = max_iters
self.grad_tol = grad_tol
self.max_evals_grouped = max_evals_grouped
self.aux_operators = aux_operators
self.auto_conversion = auto_conversion
self.use_zero_initial_parameters = use_zero_initial_parameters
self.parameters_per_step = 1
self._coms = None
self.first_step = False
self._current_max_grad = None
self._optimal_circuit = None
self._ret = {}
self.adapt_step_history = {
'gradient_list': [], # updated in _compute_gradients
'max_gradient': [], # updated in _ansatz_operator_list
'optimal_parameters': [], # updated in _run
'circuit': [], # updated in _run
'operators': [], # updated in _ansatz_operator_list
'vqe_ret': [], # updated in _run
'energy_history': [], # updated in _run
'Total Eval Time': 0, #added by WillB
'Total num evals': 0 #added by WillB
}
def __init__(
self,
operator_pool,
initial_state,
vqe_optimizer,
hamiltonian,
max_iters,
energy_step_tol= 1e-8,
auto_conversion=True,
use_zero_initial_parameters=False,
postprocessing = False,
include_parameter = True
): #most of these params no longer matter, should edit to remove necessity
self._quantum_instance = None
super().__init__(operator_pool,
initial_state,
vqe_optimizer,
hamiltonian,
max_iters, #mximum number of iterations
grad_tol = 1e-3, #stopping criteria if we were using gradient tolerance (we're not)
max_evals_grouped=1,#unsure what this means
aux_operators=None, #additional operators in pool
auto_conversion=True, #when using VQE algorithm auto converts operators to best representaiton for backend
use_zero_initial_parameters=False #Make your parameters start at zero before gradient based optimization
) #initialization from ADAPTVQE
self.energy_step_tol = energy_step_tol #the stopping criteria for energy step
self.hamiltonian = hamiltonian
self.postprocessing = postprocessing
self.include_parameter = include_parameter
if initial_state is None: #creates new initial state if none passed
self.initial_state = Zero(num_qubits=operator_pool.num_qubits) #Custom(hamiltonian.num_qubits, state='uniform')
else:
self.initial_state = initial_state
#clean up old dictionary
del self.adapt_step_history['gradient_list']
del self.adapt_step_history['max_gradient']
#del self.adapt_step_history['vqe_ret']
#self.adapt_step_history.update({'Total Eval Time': 0})
#self.adapt_step_history.update({'Total num Evals': 0})
self.adapt_step_history.update({'Total number energy iterations': 0})
self.adapt_step_history.update({'Max Energy Step': 0})
def test_vqe_caching_direct(self, batch_mode):
backend = get_aer_backend('statevector_simulator')
num_qubits = self.algo_input.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, 3, initial_state=init_state)
optimizer = L_BFGS_B()
algo = VQE(self.algo_input.qubit_op,
var_form,
optimizer,
'matrix',
batch_mode=batch_mode)
circuit_cache = CircuitCache(skip_qobj_deepcopy=True)
quantum_instance_caching = QuantumInstance(backend,
circuit_cache=circuit_cache,
skip_qobj_validation=True)
result_caching = algo.run(quantum_instance_caching)
self.assertLessEqual(circuit_cache.misses, 1)
self.assertAlmostEqual(
self.reference_vqe_result['statevector_simulator']['energy'],
result_caching['energy'])
def test_vqe_qasm_snapshot_mode(self, var_form_type):
""" VQE Aer qasm_simulator snapshot mode test """
try:
# pylint: disable=import-outside-toplevel
from qiskit import Aer
except Exception as ex: # pylint: disable=broad-except
self.skipTest("Aer doesn't appear to be installed. Error: '{}'".format(str(ex)))
return
backend = Aer.get_backend('qasm_simulator')
num_qubits = self.qubit_op.num_qubits
init_state = Zero(num_qubits)
var_form = RY(num_qubits, depth=3, initial_state=init_state)
if var_form_type is QuantumCircuit:
params = ParameterVector('θ', var_form.num_parameters)
var_form = var_form.construct_circuit(params)
optimizer = L_BFGS_B()
algo = VQE(self.qubit_op, var_form, optimizer, max_evals_grouped=1)
quantum_instance = QuantumInstance(backend, shots=1,
seed_simulator=aqua_globals.random_seed,
seed_transpiler=aqua_globals.random_seed)
result = algo.run(quantum_instance)
self.assertAlmostEqual(result.eigenvalue.real, -1.85727503, places=6)
"real": 0.18093119978423156
},
"label": "XX"
}]
}
qubit_op = WeightedPauliOperator.from_dict(pauli_dict)
num_qubits = qubit_op.num_qubits
print('Number of qubits: {}'.format(num_qubits))
# ### Picking Quantum Circuit to Represent Wavefunction
# We will be discussing details on these waveforms tomorrow
# In[3]:
init_state = Zero(num_qubits)
var_form = RY(num_qubits, initial_state=init_state)
# # Using Simulator Backend
# In[4]:
backend = BasicAer.get_backend('statevector_simulator')
# ## Import Different Optimizers and Compare
# In[10]:
from qiskit.aqua.components.optimizers import COBYLA, L_BFGS_B, SLSQP, SPSA
import numpy as np
from qiskit.aqua import QuantumInstance, aqua_globals
def test_qubits_5_circuit(self):
self.zero = Zero(5)
cct = self.zero.construct_circuit('circuit')
self.assertEqual(cct.qasm(), 'OPENQASM 2.0;\ninclude "qelib1.inc";\nqreg q[5];\n')
warnings.simplefilter("ignore")
backend = Aer.get_backend('statevector_simulator')
qi = QuantumInstance(backend)
pool_info = {'names': [], 'exp vals': []}
evals = 0
num_qubits = 4
pool = PauliPool.from_all_pauli_strings(
num_qubits) #all possible pauli strings
q = QuantumRegister(num_qubits, name='q')
circ = Zero(num_qubits).construct_circuit('circuit', q)
for op in pool.pool:
pool_info['names'].append(op.print_details())
pool_info['exp vals'], evals = multi_circuit_eval(circ, pool.pool, qi, True)
for i in range(0, (len(pool_info['exp vals']))):
pool_info['exp vals'][i] = complex(pool_info['exp vals'][i][0])
print('evals', evals)
out_file = open("Pauli_values.csv", "w+")
pool_info_df = pd.DataFrame(pool_info)
pool_info_df.to_csv('Pauli_values.csv')
cvqe_dict = {'2': [], '3': [], '4': [], '5': [], '6': [], '7': [], '8': [], '9': [], '10': []}
vqe_dict = {'2': [], '3': [], '4': [], '5': [], '6': [], '7': [], '8': [], '9': [], '10': []}
exact_dict = {'2': [], '3': [], '4': [], '5': [], '6': [], '7': [], '8': [], '9': [], '10': []}
num_qubits = 4
#test = random_diagonal_hermitian(2)
#print(test.print_details())
#mat = to_matrix_operator(test)
#print(mat.print_details())
for i in range(0,1):
k = 0
runtime_sum = 0
exact_time_sum = 0
vqeruntime_sum = 0
print('num_qubits', num_qubits)
while k < runs:
initial_state = Zero(num_qubits)
op_list = []
wop = 0*WeightedPauliOperator.from_list(paulis=[Pauli.from_label('I'*num_qubits)], weights=[1.0])
#mat = np.random.uniform(0, 1, size=(2**num_qubits, 2**num_qubits)) + 1j * np.random.uniform(0, 1, size=(2**num_qubits, 2**num_qubits))
#mat = np.conjugate(np.transpose(mat)) + mat
#ham = to_weighted_pauli_operator(MatrixOperator(mat)) #creates random hamiltonian from random matrix "mat"
ham = get_h_4_hamiltonian(0.25, 2, "jw")
#ham = retrieve_ham(0, num_qubits = num_qubits)
print('old_ham', ham.print_details())
#ham = get_h_4_hamiltonian(0.5,2,'jw')
#op_list = retrieve_op_list(0, rev = True, num_qubits = num_qubits)
#for op in op_list:
# print(op.print_details())
op_list = [WeightedPauliOperator.from_list([Pauli.from_label('IIXX')]), WeightedPauliOperator.from_list([Pauli.from_label('XXXY')])]
#op_list = [WeightedPauliOperator.from_list([Pauli.from_label('YYZZ')],[1.0]),
def __init__(self,
operator_pool: OperatorPool,
initial_state: Union[InitialState, None],
vqe_optimizer: Optimizer,
hamiltonian: BaseOperator,
max_iters: int = 10,
grad_tol: float = 1e-3,
max_evals_grouped=1,
aux_operators=None,
auto_conversion=True,
use_zero_initial_parameters: Union[bool, float] = True,
callback=None,
step_callbacks=[],
drop_duplicate_circuits=True,
return_best_result: bool = False,
parameter_tolerance=None,
compute_hessian: bool = False,
operator_selector: OperatorSelector = None):
super().__init__(return_best_result)
self.operator_pool = deepcopy(operator_pool)
if initial_state is None:
self.initial_state = Zero(num_qubits=operator_pool.num_qubits)
else:
self.initial_state = initial_state
self.vqe_optimizer = vqe_optimizer
self.hamiltonian = hamiltonian
self.max_iters = max_iters
self.grad_tol = grad_tol
self.max_evals_grouped = max_evals_grouped
self.aux_operators = aux_operators
self.auto_conversion = auto_conversion
self._compute_hessian = compute_hessian
self._drop_duplicate_circuits = drop_duplicate_circuits
self.callback = callback
self.step_callbacks = step_callbacks
if operator_selector is None:
self._operator_selector = ADAPTOperatorSelector(
self.hamiltonian,
operator_pool=self.operator_pool,
drop_duplicate_circuits=self._drop_duplicate_circuits)
else:
self._operator_selector = operator_selector
if type(use_zero_initial_parameters) is bool:
self.use_zero_initial_parameters = use_zero_initial_parameters
self.__new_par = 0.0
elif type(use_zero_initial_parameters) is float:
self.use_zero_initial_parameters = True
self.__new_par = use_zero_initial_parameters
else:
raise ValueError(
'Invalid option for new parameters supplied: {}'.format(
use_zero_initial_parameters))
self.parameters_per_step = 1
self._coms = None
self._dcoms = None
self._parameter_tolerance = parameter_tolerance
if len(self.step_callbacks) == 0:
self.step_callbacks.append(MaxGradientStopper(self.grad_tol))
def test_qubits_2_circuit(self):
""" Qubits 2 Circuit test """
zero = Zero(2)
cct = zero.construct_circuit('circuit')
self.assertEqual(cct.qasm(),
'OPENQASM 2.0;\ninclude "qelib1.inc";\nqreg q[2];\n')
def test_qubits_2_vector(self):
""" Qubits 2 vector test """
zero = Zero(2)
cct = zero.construct_circuit('vector')
np.testing.assert_array_equal(cct, [1.0, 0.0, 0.0, 0.0])
def __init__(self,
operator_pool: OperatorPool,
initial_state: Union[InitialState, None],
vqe_optimizer: Optimizer,
hamiltonian: BaseOperator,
max_iters: int = 10,
energy_tol: float = 1e-3,
max_evals_grouped=1,
aux_operators=None,
auto_conversion=True,
initial_parameters: Union[int, float] = 0,
callback=None,
step_callbacks=[],
drop_duplicate_circuits=True,
return_best_result: bool = False,
parameter_tolerance=None,
compute_hessian: bool = False,
operator_selector: OperatorSelector = None,
parameters_per_step: int = 1):
super().__init__(return_best_result)
self.operator_pool = deepcopy(operator_pool)
if initial_state is None:
self.initial_state = Zero(num_qubits=operator_pool.num_qubits)
else:
self.initial_state = initial_state
self.vqe_optimizer = vqe_optimizer
self.hamiltonian = hamiltonian
self.max_iters = max_iters
self.energy_tol = energy_tol
self.max_evals_grouped = max_evals_grouped
self.aux_operators = aux_operators
self.auto_conversion = auto_conversion
self._compute_hessian = compute_hessian
self._drop_duplicate_circuits = drop_duplicate_circuits
self.callback = callback
self.step_callbacks = step_callbacks
self.ham_list = split_into_paulis(self.hamiltonian)
if operator_selector is None: #need to change, should be roto
self._operator_selector = Ha_max_OperatorSelector(
self.hamiltonian,
operator_pool=self.operator_pool,
drop_duplicate_circuits=self._drop_duplicate_circuits,
)
else:
self._operator_selector = operator_selector
self._parameter_tolerance = parameter_tolerance
if initial_parameters == 0:
self.initial_parameters = 0
self.__new_par = 0.0
elif initial_parameters == 1:
self.initial_parameters = 1
self.__new_par = 0.0
elif initial_parameters == 2:
self.initial_parameters = 2
else:
raise ValueError(
'Invalid option for new parameters supplied: {}'.format(
initial_parameters))
