def filter_and_discriminate(self):
"""
Test the process of discriminating and then applying the discriminator
using a filter.
"""
i0, q0, i1, q1 = 0., -1., 0., 1.
discriminator = LinearIQDiscriminator(self.cal_results, self.qubits,
['00', '11'])
iq_filter = DiscriminationFilter(discriminator)
new_result = iq_filter.apply(self.cal_results)
for nr in new_result.results:
self.assertEqual(nr.meas_level, 2)
for state in new_result.results[0].data.counts.to_dict():
self.assertEqual(state, '0x0')
for state in new_result.results[1].data.counts.to_dict():
self.assertEqual(state, '0x3')
self.assertEqual(len(new_result.get_memory(0)), self.shots)
self.qubits = [0]
discriminator = LinearIQDiscriminator(self.cal_results, self.qubits,
['0', '1'])
self.assertEqual(discriminator.discriminate([[i0, q0]])[0], '0')
self.assertEqual(discriminator.discriminate([[i1, q1]])[0], '1')
def test_get_base(self):
"""
Test the get_base method to see if it can properly identify the number
of basis states per quantum element. E.g. second excited level of
transmon.
"""
expected_states = {'a': '02', 'b': '01', 'c': '00', 'd': '11'}
base = DiscriminationFilter.get_base(expected_states)
self.assertEqual(base, 3)
def test_apply(self):
"""
Set-up a discriminator based on simulated data, train it and then
discriminate the calibration data.
"""
meas_cal, _ = circuits.tensored_meas_cal([[0], [1]])
backend = Aer.get_backend('qasm_simulator')
job = qiskit.execute(meas_cal,
backend=backend,
shots=self.shots,
meas_level=1)
cal_results = job.result()
i0, q0, i1, q1 = 0., -1., 0., 1.
ground = utils.create_shots(i0, q0, 0.1, 0.1, self.shots, self.qubits)
excited = utils.create_shots(i1, q1, 0.1, 0.1, self.shots, self.qubits)
cal_results.results[0].meas_level = 1
cal_results.results[1].meas_level = 1
cal_results.results[0].data = ExperimentResultData(memory=ground)
cal_results.results[1].data = ExperimentResultData(memory=excited)
discriminator = LinearIQDiscriminator(cal_results, self.qubits,
['00', '11'])
d_filter = DiscriminationFilter(discriminator)
self.assertEqual(cal_results.results[0].meas_level, 1)
new_results = d_filter.apply(cal_results)
self.assertEqual(new_results.results[0].meas_level, 2)
counts_00 = new_results.results[0].data.counts.to_dict()['0x0']
counts_11 = new_results.results[1].data.counts.to_dict()['0x3']
self.assertEqual(counts_00, self.shots)
self.assertEqual(counts_11, self.shots)
def test_apply(self):
"""
Set-up a discriminator based on simulated data, train it and then
discriminate the calibration data.
"""
result_pkl = os.path.join(os.path.dirname(__file__), 'test_result.pkl')
with open(result_pkl, 'rb') as handle:
result = Result.from_dict(pickle.load(handle))
discriminator = LinearIQDiscriminator(result, [0, 1])
d_filter = DiscriminationFilter(discriminator)
self.assertEqual(result.results[0].meas_level, 1)
new_results = d_filter.apply(result)
self.assertEqual(new_results.results[0].meas_level, 2)
for idx in range(3):
counts_00 = new_results.results[idx].data.counts.to_dict()['0x0']
counts_11 = new_results.results[idx].data.counts.to_dict()['0x3']
self.assertEqual(counts_00 + counts_11, 512)
def test_count(self):
"""
Test to see if the filter properly converts the result of
discriminator.discriminate to a dictionary of counts.
"""
fitter = LinearIQDiscriminator([], [], [])
d_filter = DiscriminationFilter(fitter, 2)
raw_counts = d_filter.count(['01', '00', '01', '00', '00', '10'])
self.assertEqual(raw_counts['0x0'], 3)
self.assertEqual(raw_counts['0x1'], 2)
self.assertEqual(raw_counts['0x2'], 1)
self.assertRaises(KeyError, getitem, raw_counts, '0x3')
d_filter = DiscriminationFilter(fitter, 3)
raw_counts = d_filter.count(['02', '02', '20', '21', '21', '02'])
self.assertEqual(raw_counts['0x2'], 3)
self.assertEqual(raw_counts['0x6'], 1)
self.assertEqual(raw_counts['0x7'], 2)
def test_apply(self):
"""
Set-up a discriminator based on simulated data, train it and then
discriminate the calibration data.
"""
cal_00_data = [[[1., 1.]], [[1.1, 0.9]], [[0.9, 1.1]], [[1., 1.1]],
[[0.9, 1.2]]]
cal_11_data = [[[-1., -1.]], [[-1.1, -0.9]], [[-0.9, -1.1]],
[[-0.9, -1.2]], [[-1., -1.1]]]
x90p_data = [[[-1.1, -1.]], [[1.1, 0.9]], [[-0.8, -1.0]], [[0.9, 1.1]],
[[1., 1.]]]
result = Result.from_dict({
'job_id':
'',
'backend_version':
'1.3.0',
'backend_name':
'test',
'qobj_id':
'',
'success':
True,
'results': [{
"header": {
"name": "cal_0"
},
"shots": 5,
"status": "DONE",
'meas_level': 1,
"success": True,
"meas_return": "single",
"data": {
"memory": cal_00_data
}
}, {
"header": {
"name": "cal_1"
},
"shots": 5,
"status": "DONE",
'meas_level': 1,
"success": True,
"meas_return": "single",
"data": {
"memory": cal_11_data
}
}, {
"header": {
"name": "x90p"
},
"shots": 5,
"status": "DONE",
'meas_level': 1,
"success": True,
"meas_return": "single",
"data": {
"memory": x90p_data
}
}]
})
discriminator = LinearIQDiscriminator(result, [0])
d_filter = DiscriminationFilter(discriminator)
self.assertEqual(result.results[0].meas_level, 1)
new_results = d_filter.apply(result)
self.assertEqual(new_results.results[0].meas_level, 2)
for name in ['cal_0', 'cal_1', 'x90p']:
counts = new_results.get_counts(name)
counts_0 = counts.get('0', 0)
counts_1 = counts.get('1', 0)
self.assertEqual(counts_0 + counts_1, 5)
if name == 'x90p':
self.assertEqual(counts_0, 3)
self.assertEqual(counts_1, 2)