def calibrate_all_cross_Ramsey(device):
cross_Ramsey_fits = {}
for qubit_id in device.get_qubit_list():
min_step = float(device.get_qubit_constant(qubit_id=qubit_id, name='adaptive_Rabi_min_step'))
scan_points = int(device.get_qubit_constant(qubit_id=qubit_id, name='adaptive_Rabi_scan_points'))
points_per_oscillation_target = float(device.get_qubit_constant(qubit_id=qubit_id, name='adaptive_Ramsey_points_per_oscillation'))
initial_delay = float(device.get_qubit_constant(qubit_id=qubit_id, name='cross_Ramsey_initial_delay'))
target_offset = 1./(min_step*points_per_oscillation_target)
amplitude_default = float(device.get_qubit_constant(qubit_id=qubit_id, name='amplitude_default'))
lengths = np.arange(initial_delay, min_step*scan_points+initial_delay, min_step)
cross_Ramsey_fits[qubit_id] = {}
for channel_name1, device_name1 in device.get_qubit_excitation_channel_list(qubit_id).items():
ch1 = channel_amplitudes(device, **{channel_name1:amplitude_default})
try:
pulse1 = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi/2., channel_amplitudes_override=ch1)
except:
print ('Failed to Rabi-calibrate channel ', channel_name)
continue
cross_Ramsey_fits[qubit_id][channel_name1] = {}
for channel_name2, device_name2 in device.get_qubit_excitation_channel_list(qubit_id).items():
ch2 = channel_amplitudes(device, **{channel_name2:amplitude_default})
try:
pulse2 = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi/2., channel_amplitudes_override=ch2)
except:
print ('Failed to Rabi-calibrate channel ', channel_name)
continue
#cross_Ramsey_measurement_results = {}
cross_Ramsey_measurements = device.exdir_db.select_measurements_db(measurement_type='Ramsey', references_that={'ex_pulse1': pulse1.id, 'ex_pulse2': pulse2.id})
for m in cross_Ramsey_measurements:
for r in m.reference_two:
if r.ref_type=='fit_source':
fit = r.this
if int(device.exdir_db.db.Metadata[fit, 'frequency_goodness_test'].value):
cross_Ramsey_fits[qubit_id][channel_name1][channel_name2] = device.exdir_db.select_measurement_by_id(fit.id)
if channel_name2 not in cross_Ramsey_fits[qubit_id][channel_name1]: # hasn't been found in db
Ramsey(device, qubit_id, channel_amplitudes1=ch1, channel_amplitudes2=ch2, lengths=lengths, target_freq_offset=target_offset)
return cross_Ramsey_fits
def xeb_single_qubit_rotation(device, qubit_id):
from .readout_pulse2 import get_uncalibrated_measurer
from qsweepy.qubit_calibrations import excitation_pulse2 as excitation_pulse
qubit_readout_pulse, readout_device = get_uncalibrated_measurer(device, qubit_id)
rotation = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi / 2.)
random_phase_gats = []
# TODO: define random phase gates for single-qubit XEBs
def calibrate_all_single_channel_Rabi(device, _qubit_id=None, transition='01', remove_bad=False):
if _qubit_id is None:
_qubit_id = device.get_qubit_list()
elif type(_qubit_id) is int:
_qubit_id = [_qubit_id]
for qubit_id in _qubit_id:
amplitude_default = float(device.get_qubit_constant(qubit_id=qubit_id, name='amplitude_default'))
qubit_channel_calibrated = {}
for channel_name, device_name in device.get_qubit_excitation_channel_list(qubit_id,
transition=transition).items():
ch = channel_amplitudes(device, **{channel_name: amplitude_default})
try:
excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi/2., transition=transition, channel_amplitudes_override=ch)
qubit_channel_calibrated[channel_name] = device_name
except Exception as e:
print ('Failed to Rabi-calibrate channel ', channel_name)
traceback.print_exc()
if remove_bad:
print ('Removing from channel list!')
if remove_bad:
device.set_qubit_excitation_channel_list(qubit_id, qubit_channel_calibrated)
def get_confusion_matrix(device, qubit_ids, pause_length=0, recalibrate=True, force_recalibration=False):
qubit_readout_pulse, readout_device = get_calibrated_measurer(device, qubit_ids)
# TODO
'''Warning'''
excitation_pulses = {qubit_id: excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi) for
qubit_id in qubit_ids}
''''''
references = {('excitation_pulse', qubit_id): pulse.id for qubit_id, pulse in excitation_pulses.items()}
references['readout_pulse'] = qubit_readout_pulse.id
metadata = {'qubit_ids': qubit_readout_pulse.metadata['qubit_ids'], 'pause_length': str(pause_length)}
try:
assert not force_recalibration
confusion_matrix = device.exdir_db.select_measurement(measurement_type='confusion_matrix',
references_that=references, metadata=metadata)
except:
if not recalibrate:
raise
confusion_matrix = calibrate_preparation_and_readout_confusion(device =device, qubit_readout_pulse = qubit_readout_pulse,
readout_device = readout_device,
pause_length = pause_length)
return qubit_readout_pulse, readout_device, confusion_matrix
def readout_Zgate_scan(device, qubit_id, qubit_readout_pulse, Zgate, amplitudes, transition='01', ignore_other_qubits=None):
adc, mnames = device.setup_adc_reducer_iq(qubit_id, raw=True)
nums = int(device.get_qubit_constant(qubit_id=qubit_id, name='readout_background_nums'))
old_nums = adc.get_adc_nums()
adc.set_adc_nop(int(device.get_sample_global('readout_adc_points')))
if ignore_other_qubits is None:
ignore_other_qubits = (device.get_qubit_constant(qubit_id=qubit_id, name='readout_calibration_ignore_other_qubits') == 'True')
print ('ignore_other_qubits', ignore_other_qubits)
other_qubit_pulse_sequence = []
references = {}
if not ignore_other_qubits:
for other_qubit_id in device.get_qubit_list():
if other_qubit_id != qubit_id:
half_excited_pulse = excitation_pulse.get_excitation_pulse(device, other_qubit_id,
rotation_angle=np.pi / 2.)
references[('other_qubit_pulse', other_qubit_id)] = half_excited_pulse.id
other_qubit_pulse_sequence.extend(half_excited_pulse.get_pulse_sequence(0)[0])
qubit_excitation_pulse = excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi)
metadata = {'qubit_id': qubit_id,
'averages': nums,
'ignore_other_qubits': ignore_other_qubits}
references.update({'readout_pulse': qubit_readout_pulse.id,
'excitation_pulse': qubit_excitation_pulse.id,
'delay_calibration': device.modem.delay_measurement.id,
'Zgate': Zgate.id},
)
classifier = single_shot_readout.single_shot_readout(adc=adc,
prepare_seqs=[
device.pre_pulses + other_qubit_pulse_sequence,
device.pre_pulses + other_qubit_pulse_sequence + qubit_excitation_pulse.get_pulse_sequence(0)],
ro_seq=device.trigger_readout_seq + qubit_readout_pulse.get_pulse_sequence(),
control_seq=None,
# pulse_generator=device.pg,
ro_delay_seq=None,
_readout_classifier=readout_classifier.binary_linear_classifier(),
adc_measurement_name='Voltage')
def set_Zgate_amplitude(x):
channel_amplitudes1_ = channel_amplitudes.channel_amplitudes(device,
**{Zgate.metadata[
'carrier_name']: x})
print(channel_amplitudes1_)
pulse_seq1 = excitation_pulse.get_rect_cos_pulse_sequence(device=device,
channel_amplitudes=channel_amplitudes1_,
tail_length=float(Zgate.metadata['tail_length']),
length=float(qubit_readout_pulse.metadata['length']),
phase=0.0)
classifier.ro_seq = device.trigger_readout_seq + device.pg.parallel(pulse_seq1,qubit_readout_pulse.get_pulse_sequence())
classifier.readout_classifier.cov_mode = 'equal'
try:
adc.set_adc_nums(nums)
measurement = device.sweeper.sweep(classifier,
(amplitudes, set_Zgate_amplitude, 'amplitude', 'Voltage'),
measurement_type='readout_Zgate_scan',
metadata=metadata,
references=references)
except:
raise
finally:
adc.set_adc_nums(old_nums)
return measurement
# classifier.repeat_samples = 2
def calibrate_preparation_and_readout_confusion(device, qubit_readout_pulse, readout_device, *extra_sweep_args,
pause_length=0, middle_seq_generator = None,
additional_references = {}, additional_metadata = {}):
qubit_ids = qubit_readout_pulse.metadata['qubit_ids'].split(',')
target_qubit_states = [0] * len(qubit_ids)
# TODO
'''Warning'''
excitation_pulses = {qubit_id: excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi) for
qubit_id in qubit_ids}
''''''
references = {('excitation_pulse', qubit_id): pulse.id for qubit_id, pulse in excitation_pulses.items()}
references['readout_pulse'] = qubit_readout_pulse.id
re_sequence = sequence_control.define_readout_control_seq(device, qubit_readout_pulse)
#TODO
exitation_channel = [i for i in device.get_qubit_excitation_channel_list(qubit_ids[0]).keys()][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel//2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses = [])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[], control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
#sequence_control.set_preparation_sequence(device, ex_sequencers, [other_qubit_pulse_sequence+
# qubit_excitation_pulse.get_pulse_sequence(0)])
def set_target_state(state):
re_sequence.awg.stop_seq(re_sequence.params['sequencer_id'])
preparation_sequence = []
for _id, qubit_id in enumerate(qubit_ids):
qubit_state = (1 << _id) & state
if qubit_state:
# TODO
'''Warning'''
preparation_sequence.extend(excitation_pulses[qubit_id].get_pulse_sequence(0))
if middle_seq_generator is not None:
# TODO
'''Warning'''
middle_pulse = middle_seq_generator()
preparation_sequence.extend(middle_pulse)
else:
middle_pulse = []
# TODO
'''Warning'''
sequence_control.set_preparation_sequence(device, ex_sequencers, preparation_sequence)
re_sequence.awg.start_seq(re_sequence.params['sequencer_id'])
if middle_seq_generator is not None:
measurement_type = 'confusion_matrix_middle_seq'
else:
measurement_type = 'confusion_matrix'
metadata = {'qubit_ids': qubit_readout_pulse.metadata['qubit_ids'],
'pause_length': str(pause_length)}
references.update(additional_references)
metadata.update(additional_metadata)
return device.sweeper.sweep(readout_device,
*extra_sweep_args,
(np.arange(2 ** len(qubit_ids)), set_target_state, 'Target state', ''),
measurement_type=measurement_type,
references=references,
metadata=metadata)
def readout_fidelity_scan(device, qubit_id, readout_pulse_lengths, readout_pulse_amplitudes,
recalibrate_excitation=True, ignore_other_qubits=False, channel_amplitudes=None):
adc, mnames = device.setup_adc_reducer_iq(qubit_id, raw=True)
nums = int(device.get_qubit_constant(qubit_id=qubit_id, name='readout_background_nums'))
adc.set_adc_nop(int(device.get_sample_global('readout_adc_points')))
old_nums = adc.get_adc_nums()
readout_channel = [i for i in device.get_qubit_readout_channel_list(qubit_id).keys()][0]
other_qubit_pulse_sequence = []
references = {'frequency_controls': device.get_frequency_control_measurement_id(qubit_id=qubit_id)}
if hasattr(device.awg_channels[readout_channel], 'get_calibration_measurement'):
references['channel_calibration'] = device.awg_channels[readout_channel].get_calibration_measurement()
if not ignore_other_qubits:
for other_qubit_id in device.get_qubit_list():
if other_qubit_id != qubit_id:
'''Warning'''
#TODO
half_excited_pulse = excitation_pulse.get_excitation_pulse(device, other_qubit_id,
rotation_angle=np.pi / 2.,
recalibrate=recalibrate_excitation)
references[('other_qubit_pulse', other_qubit_id)] = half_excited_pulse.id
other_qubit_pulse_sequence.extend(half_excited_pulse.get_pulse_sequence(0))
'''Warning'''
# TODO
qubit_excitation_pulse = excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi, channel_amplitudes_override=channel_amplitudes,
recalibrate=recalibrate_excitation)
metadata = {'qubit_id': qubit_id,
'averages': nums,
'channel': readout_channel,
'ignore_other_qubits': ignore_other_qubits}
# print ('len(readout_pulse_lengths): ', len(readout_pulse_lengths))
if len(readout_pulse_lengths) == 1:
metadata['length'] = str(readout_pulse_lengths[0])
references.update({'excitation_pulse': qubit_excitation_pulse.id,
'delay_calibration': device.modem.delay_measurement.id})
#TODO
exitation_channel = [i for i in device.get_qubit_excitation_channel_list(qubit_id).keys()][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel//2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses = [])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[], control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
sequence_control.set_preparation_sequence(device, ex_sequencers, other_qubit_pulse_sequence+
qubit_excitation_pulse.get_pulse_sequence(0))
'''Warning'''
#readout_sequencer = sequence_control.define_readout_control_seq(device, readout_channel)
#raise ValueError('fallos')
re_channel = device.awg_channels[readout_channel]
readout_sequencer = zi_scripts.READSequence(re_channel.parent.sequencer_id, device.modem.awg)
def_frag, play_frag = device.pg.readout_rect(channel=readout_channel, length=readout_pulse_lengths[0],
amplitude=readout_pulse_amplitudes[0])
readout_sequencer.add_readout_pulse(def_frag, play_frag)
readout_sequencer.stop()
device.modem.awg.set_sequence(readout_sequencer.params['sequencer_id'], readout_sequencer)
readout_sequencer.set_delay(device.modem.trigger_channel.delay)
readout_sequencer.start()
classifier = single_shot_readout.single_shot_readout(device=device,
adc=adc,
prepare_seqs=[other_qubit_pulse_sequence,
other_qubit_pulse_sequence +
qubit_excitation_pulse.get_pulse_sequence(0)],
ex_seqs=ex_sequencers,
ro_seq=readout_sequencer,
control_seq=control_sequence,
#pulse_generator=device.pg,
ro_delay_seq=None,
_readout_classifier=readout_classifier.binary_linear_classifier(),
adc_measurement_name='Voltage',
dbg_storage=False)
classifier.readout_classifier.cov_mode = 'equal'
# setters for sweep
readout_amplitude = 0
readout_length = 0
class ParameterSetter:
def __init__(self):
self.readout_amplitude = 0
self.readout_length = 0
self.channel = readout_channel
def set_readout_amplitude(self, x):
#nonlocal readout_amplitude
self.readout_amplitude = x
#classifier.ro_seq = device.trigger_readout_seq + [
# device.pg.p(readout_channel, readout_length, device.pg.rect, readout_amplitude)]
classifier.ro_seq.set_awg_amp(x)
def set_readout_length(self, x):
#nonlocal readout_length
self.readout_length = x
#classifier.ro_seq = device.trigger_readout_seq + [
# device.pg.p(readout_channel, readout_length, device.pg.rect, readout_amplitude)]
classifier.ro_seq.awg.stop_seq(classifier.ro_seq.params['sequencer_id'])
def_frag, play_frag = device.pg.readout_rect(channel=self.channel,
length=self.readout_length,
amplitude=self.readout_amplitude)
classifier.ro_seq.clear_readout_pulse()
classifier.ro_seq.add_readout_pulse(def_frag, play_frag)
device.modem.awg.set_sequence(classifier.ro_seq.params['sequencer_id'], classifier.ro_seq)
classifier.ro_seq.awg.start_seq(classifier.ro_seq.params['sequencer_id'])
setter = ParameterSetter()
try:
adc.set_adc_nums(nums)
measurement = device.sweeper.sweep(classifier,
(readout_pulse_lengths, setter.set_readout_length, 'length', 's'),
(readout_pulse_amplitudes, setter.set_readout_amplitude, 'amplitude', ''),
measurement_type='readout_fidelity_scan',
metadata=metadata,
references=references)
except:
raise
finally:
adc.set_adc_nums(old_nums)
return measurement
def calibrate_readout(device, qubit_id, qubit_readout_pulse, transition='01', ignore_other_qubits=None):
adc, mnames = device.setup_adc_reducer_iq(qubit_id, raw=True)
nums = int(device.get_qubit_constant(qubit_id=qubit_id, name='readout_background_nums'))
old_nums = adc.get_adc_nums()
adc.set_adc_nop(int(device.get_sample_global('readout_adc_points')))
if ignore_other_qubits is None:
ignore_other_qubits = (device.get_qubit_constant(qubit_id=qubit_id, name='readout_calibration_ignore_other_qubits') == 'True')
print ('ignore_other_qubits', ignore_other_qubits)
other_qubit_pulse_sequence = []
references = {}
if not ignore_other_qubits:
for other_qubit_id in device.get_qubit_list():
if other_qubit_id != qubit_id:
# TODO
'''Warning'''
half_excited_pulse = excitation_pulse.get_excitation_pulse(device, other_qubit_id,
rotation_angle=np.pi / 2.)
references[('other_qubit_pulse', other_qubit_id)] = half_excited_pulse.id
other_qubit_pulse_sequence.extend(half_excited_pulse.get_pulse_sequence(0))
# TODO
'''Warning'''
qubit_excitation_pulse = excitation_pulse.get_excitation_pulse(device, qubit_id, rotation_angle=np.pi)
metadata = {'qubit_id': qubit_id,
'averages': nums,
'ignore_other_qubits': ignore_other_qubits}
references.update({'readout_pulse': qubit_readout_pulse.id,
'excitation_pulse': qubit_excitation_pulse.id,
'delay_calibration': device.modem.delay_measurement.id})
#TODO
exitation_channel = [i for i in device.get_qubit_excitation_channel_list(qubit_id).keys()][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel//2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses = [])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[], control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
sequence_control.set_preparation_sequence(device, ex_sequencers, other_qubit_pulse_sequence+
qubit_excitation_pulse.get_pulse_sequence(0))
'''Warning'''
#readout_sequencer = sequence_control.define_readout_control_seq(device, readout_channel)
#raise ValueError('fallos')
readout_sequencer = sequence_control.define_readout_control_seq(device, qubit_readout_pulse)
readout_sequencer.start()
classifier = single_shot_readout.single_shot_readout(device=device,
adc=adc,
prepare_seqs=[other_qubit_pulse_sequence,
other_qubit_pulse_sequence +
qubit_excitation_pulse.get_pulse_sequence(0)],
ex_seqs=ex_sequencers,
ro_seq=readout_sequencer,
control_seq = control_sequence,
#pulse_generator=device.pg,
ro_delay_seq=None,
_readout_classifier=readout_classifier.binary_linear_classifier(),
adc_measurement_name='Voltage',
dbg_storage=False)
classifier.readout_classifier.cov_mode = 'equal'
try:
adc.set_adc_nums(nums)
measurement = device.sweeper.sweep(classifier,
measurement_type='readout_calibration',
metadata=metadata,
references=references)
except:
raise
finally:
adc.set_adc_nums(old_nums)
return measurement
def benchmarking_pi2_multi(device,
qubit_ids,
*params,
interleaver=None,
two_qubit_gate=None,
max_pulses=None,
pause_length=0,
random_sequence_num=1,
seq_lengths_num=400,
two_qubit_num=0,
random_gate_num=1):
channel_amplitudes_ = {}
pi2_pulses = {}
pi_pulses = {}
generators = {}
if max_pulses is None:
max_pulses = []
for qubit_id in qubit_ids:
coherence_measurement = Ramsey.get_Ramsey_coherence_measurement(
device, qubit_id)
T2 = float(coherence_measurement.metadata['T'])
pi2_pulses[qubit_id] = excitation_pulse.get_excitation_pulse(
device, qubit_id, np.pi / 2.)
pi2_pulse_length = float(pi2_pulses[qubit_id].metadata['length'])
pi_pulses[qubit_id] = excitation_pulse.get_excitation_pulse(
device, qubit_id, np.pi)
pi_pulse_length = float(pi_pulses[qubit_id].metadata['length'])
max_pulses.append(T2 / pi2_pulse_length)
if two_qubit_gate is not None:
max_pulses = np.asarray(max_pulses) / 3.
max_pulses = min(max_pulses)
for qubit_id in qubit_ids:
pi2_pulses[qubit_id] = excitation_pulse.get_excitation_pulse(
device, qubit_id, np.pi / 2.)
pi_pulses[qubit_id] = excitation_pulse.get_excitation_pulse(
device, qubit_id, np.pi)
channel_amplitudes_[qubit_id] = channel_amplitudes.channel_amplitudes(
device.exdir_db.select_measurement_by_id(
pi2_pulses[qubit_id].references['channel_amplitudes']))
seq_lengths = np.asarray(
np.round(np.linspace(0, max_pulses, seq_lengths_num)), int)
def get_pulse_seq_z(z_phase, length, qubit_id):
fast_control = False
z_pulse = [(c, device.pg.virtual_z, z_phase * 360 / 2 / np.pi,
fast_control)
for c, a in channel_amplitudes_[qubit_id].items()]
sequence_z = [device.pg.pmulti(device, length, *tuple(z_pulse))]
return sequence_z
def tensor_product(unitary, qubit_id):
U = [[1]]
for i in qubit_ids:
U = np.kron(U, np.identity(2) if i != qubit_id else unitary)
return U
#TODO
qubit_readout_pulse, readout_device = calibrated_readout.get_calibrated_measurer(
device, qubit_ids)
generators = {}
for qubit_id in qubit_ids:
HZ = {
'X': {
'pulses': pi_pulses[qubit_id].get_pulse_sequence(0),
'unitary': tensor_product(np.asarray([[0, 1], [1, 0]]),
qubit_id),
'price': 1.0
},
'X/2': {
'pulses':
pi2_pulses[qubit_id].get_pulse_sequence(0),
'unitary':
np.sqrt(0.5) *
tensor_product(np.asarray([[1, -1j], [-1j, 1]]), qubit_id),
'price':
1.0
},
'-X/2': {
'pulses':
pi2_pulses[qubit_id].get_pulse_sequence(np.pi),
'unitary':
np.sqrt(0.5) *
tensor_product(np.asarray([[1, 1j], [1j, 1]]), qubit_id),
'price':
1.0
},
'Z': {
'pulses': get_pulse_seq_z(np.pi, pi2_pulse_length, qubit_id),
'unitary': tensor_product([[1, 0], [0, -1]], qubit_id),
'price': 0.1
},
'Z/2': {
'pulses': get_pulse_seq_z(np.pi / 2, pi2_pulse_length,
qubit_id),
'unitary': tensor_product([[1, 0], [0, 1j]], qubit_id),
'price': 0.1
},
'-Z/2': {
'pulses': get_pulse_seq_z(-np.pi / 2., pi2_pulse_length,
qubit_id),
'unitary': tensor_product([[1, 0], [0, -1j]], qubit_id),
'price': 0.1
},
'I': {
'pulses': get_pulse_seq_z(0, pi2_pulse_length, qubit_id),
'unitary': tensor_product([[1, 0], [0, 1]], qubit_id),
'price': 0.1
}
}
generators[qubit_id] = HZ
if len(qubit_ids) == 2:
#TODO
HZ_group = clifford.two_qubit_clifford(
*tuple([g for g in generators.values()]),
plus_op_parallel=device.pg.parallel,
two_qubit_gate=two_qubit_gate)
elif len(qubit_ids) == 1:
HZ_group = clifford.generate_group(generators[qubit_ids[0]])
else:
raise ValueError('More than two qubits are unsupported')
print('group length:', len(HZ_group))
# TODO qubit sequencer
exitation_channel = [
i
for i in device.get_qubit_excitation_channel_list(qubit_ids[0]).keys()
][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel // 2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[],
control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
seeds = np.random.randint(100000,
size=(random_sequence_num, len(qubit_ids),
len(seq_lengths)))
references = {'seeds': seeds}
pi2_bench = interleaved_benchmarking.interleaved_benchmarking(
readout_device,
ex_sequencers,
seeds,
seq_lengths,
interleavers=HZ_group,
random_sequence_num=random_sequence_num,
two_qubit_num=two_qubit_num,
random_gate_num=random_gate_num)
#TODO prepare_seq
prepare_seq = pi2_bench.create_hdawg_generator()
sequence_control.set_preparation_sequence(device, ex_sequencers,
prepare_seq)
#TODO readout sequence
#ro_seq = [device.pg.pmulti(pause_length)]+device.trigger_readout_seq+qubit_readout_pulse.get_pulse_sequence()
readout_sequencer = sequence_control.define_readout_control_seq(
device, qubit_readout_pulse)
readout_sequencer.start()
pi2_bench.random_sequence_num = random_sequence_num
seeds_ids = np.arange(seeds.shape[0])
references = references.update({('pi2_pulse', qubit_id):
pi2_pulses[qubit_id].id
for qubit_id in qubit_ids})
references = references.update({('pi_pulse', qubit_id):
pi_pulses[qubit_id].id
for qubit_id in qubit_ids})
# TODO
# pi2_bench.prepare_random_interleaving_sequences()
### search db for previous version of the interleaver measurement
found = False
try:
clifford_bench = device.exdir_db.select_measurement(
measurement_type='clifford_bench',
metadata={'qubit_ids': ','.join(qubit_ids)},
references_that=references)
found = True
except IndexError:
pass
if random_sequence_num > 1:
params = tuple([(seeds_ids, pi2_bench.set_interleaved_sequence,
'Random seeds id', '')] + [p for p in params])
if (not found) or (interleaver is None):
measurement_name = [m for m in pi2_bench.get_points().keys()][0]
fitter_arguments = (measurement_name, exp.exp_fitter(), 0,
np.arange(len(params)).tolist())
clifford_bench = device.sweeper.sweep_fit_dataset_1d_onfly(
pi2_bench,
(seq_lengths, pi2_bench.set_sequence_length, 'Gate number', ''),
*params,
fitter_arguments=fitter_arguments,
measurement_type='clifford_bench',
metadata={'qubit_ids': ','.join(qubit_ids)},
shuffle=True,
references=references)
## interleaver measurement is found, bench "interleaver" gate
references['Clifford-bench'] = clifford_bench.id
if interleaver is not None:
if 'references' in interleaver:
references.update(interleaver['references'])
pi2_bench.set_target_pulse(interleaver)
measurement_name = [m for m in pi2_bench.get_points().keys()][0]
fitter_arguments = (measurement_name, exp.exp_fitter(), 0,
np.arange(len(params)).tolist())
interleaved_bench = device.sweeper.sweep_fit_dataset_1d_onfly(
pi2_bench,
(seq_lengths, pi2_bench.set_sequence_length, 'Gate number', ''),
*params,
fitter_arguments=fitter_arguments,
measurement_type='interleaved_bench',
metadata={'qubit_ids': ','.join(qubit_ids)},
shuffle=True,
references=references)
return interleaved_bench
return clifford_bench
def benchmarking_pi2(device,
qubit_id,
*params,
pause_length=0,
random_sequence_num=1,
seq_lengths_num=400):
coherence_measurement = Ramsey.get_Ramsey_coherence_measurement(
device, qubit_id)
T2 = float(coherence_measurement.metadata['T'])
pi2_pulse = excitation_pulse.get_excitation_pulse(device, qubit_id,
np.pi / 2.)
pi2_pulse_length = float(pi2_pulse.metadata['length'])
pi_pulse = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi)
pi_pulse_length = float(pi_pulse.metadata['length'])
channel_amplitudes_ = channel_amplitudes.channel_amplitudes(
device.exdir_db.select_measurement_by_id(
pi2_pulse.references['channel_amplitudes']))
max_pulses = T2 / pi2_pulse_length
seq_lengths = np.asarray(
np.round(np.linspace(0, max_pulses, seq_lengths_num)), int)
def get_pulse_seq_z(z_phase, length):
fast_control = False
z_pulse = [(c, device.pg.virtual_z, z_phase * 360 / 2 / np.pi,
fast_control) for c, a in channel_amplitudes_.items()]
sequence_z = [device.pg.pmulti(device, length, *tuple(z_pulse))]
return sequence_z
#TODO
qubit_readout_pulse, readout_device = calibrated_readout.get_calibrated_measurer(
device, [qubit_id])
#HZ = {'X': {'pulses': pi_pulse.get_pulse_sequence(0), 'unitary': np.asarray([[0, 1], [1, 0]]), 'price': 1.0},
# 'X/2': {'pulses': pi2_pulse.get_pulse_sequence(0), 'unitary': np.sqrt(0.5) * np.asarray([[1, -1j], [-1j, 1]]), 'price': 1.0},
# '-X/2': {'pulses': pi2_pulse.get_pulse_sequence(np.pi), 'unitary': np.sqrt(0.5) * np.asarray([[1, 1j], [1j, 1]]), 'price': 1.0},
# 'Z': {'pulses': get_pulse_seq_z(np.pi), 'unitary': np.asarray([[1, 0], [0, -1]]), 'price':0.1},
# 'Z/2': {'pulses': get_pulse_seq_z(np.pi / 2), 'unitary': np.asarray([[1, 0], [0, 1j]]), 'price':0.1},
# '-Z/2': {'pulses': get_pulse_seq_z(-np.pi / 2.), 'unitary': np.asarray([[1, 0], [0, -1j]]), 'price':0.1},
# 'I': {'pulses': get_pulse_seq_z(0, qubit_id), 'unitary': np.asarray([[1, 0], [0, 1]]), 'price':0.1}
# }
#X_metadata = pi_pulse.metadata()
#X2_metadata = pi2_pulse.metadata()
#X_2_metadata = pi2_pulse.metadata()
#X_2_metadata['amplitude'] = float(a) * float(self.metadata['amplitude']) * np.exp(1j * phase)
HZ = {
'X': {
'pulses': pi_pulse.get_pulse_sequence(0),
'unitary': np.asarray([[0, 1], [1, 0]]),
'price': 1.0
},
'X/2': {
'pulses': pi2_pulse.get_pulse_sequence(0),
'unitary': np.sqrt(0.5) * np.asarray([[1, -1j], [-1j, 1]]),
'price': 1.0
},
'-X/2': {
'pulses': pi2_pulse.get_pulse_sequence(np.pi),
'unitary': np.sqrt(0.5) * np.asarray([[1, 1j], [1j, 1]]),
'price': 1.0
},
'Z': {
'pulses': get_pulse_seq_z(np.pi, pi2_pulse_length),
'unitary': np.asarray([[1, 0], [0, -1]]),
'price': 0.1
},
'Z/2': {
'pulses': get_pulse_seq_z(np.pi / 2, pi2_pulse_length),
'unitary': np.asarray([[1, 0], [0, 1j]]),
'price': 0.1
},
'-Z/2': {
'pulses': get_pulse_seq_z(-np.pi / 2., pi2_pulse_length),
'unitary': np.asarray([[1, 0], [0, -1j]]),
'price': 0.1
},
'I': {
'pulses': get_pulse_seq_z(0, pi2_pulse_length),
'unitary': np.asarray([[1, 0], [0, 1]]),
'price': 0.1
}
}
HZ_group = clifford.generate_group(HZ)
#TODO qubit sequencer
exitation_channel = [
i for i in device.get_qubit_excitation_channel_list(qubit_id).keys()
][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel // 2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[],
control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
pi2_bench = interleaved_benchmarking.interleaved_benchmarking(
readout_device, ex_sequencers, HZ_group)
#pi2_bench.interleavers = HZ_group
#TODO prepare_seq
prepare_seq = pi2_bench.create_hdawg_generator()
sequence_control.set_preparation_sequence(device, ex_sequencers,
prepare_seq)
# TODO Readout sequencer
#ro_seq = [device.pg.pmulti(pause_length)]+device.trigger_readout_seq+qubit_readout_pulse.get_pulse_sequence()
readout_sequencer = sequence_control.define_readout_control_seq(
device, qubit_readout_pulse)
readout_sequencer.start()
#pi2_bench = interleaved_benchmarking.interleaved_benchmarking(readout_device,
# set_seq = lambda x: device.pg.set_seq(device.pre_pulses+x+ro_seq))
#pi2_bench.interleavers = HZ_group
pi2_bench.random_sequence_num = random_sequence_num
random_sequence_ids = np.arange(random_sequence_num)
pi2_bench.prepare_random_interleaving_sequences()
clifford_bench = device.sweeper.sweep(
pi2_bench, (seq_lengths, pi2_bench.set_sequence_length_and_regenerate,
'Gate number', ''),
*params, (random_sequence_ids, pi2_bench.set_interleaved_sequence,
'Random sequence id', ''),
shuffle=True,
measurement_type='pi2_bench',
metadata={'qubit_id': qubit_id},
references={
'pi2_pulse': pi2_pulse.id,
'pi_pulse': pi_pulse.id
})
return clifford_bench
def relaxation(device,
qubit_id,
transition='01',
*extra_sweep_args,
channel_amplitudes=None,
lengths=None,
readout_delay=0,
delay_seq_generator=None,
measurement_type='decay',
ex_pulse=None,
additional_references={},
additional_metadata={}):
from .readout_pulse import get_uncalibrated_measurer
from ..fitters.exp import exp_fitter
if type(lengths) is type(None):
lengths = np.arange(
0,
float(
device.get_qubit_constant(qubit_id=qubit_id,
name='Ramsey_length')),
float(
device.get_qubit_constant(qubit_id=qubit_id,
name='Ramsey_step')))
#readout_pulse = get_qubit_readout_pulse(device, qubit_id)
readout_pulse, measurer = get_uncalibrated_measurer(
device, qubit_id, transition)
if ex_pulse is None:
ex_pulse = excitation_pulse.get_excitation_pulse(
device,
qubit_id,
np.pi,
channel_amplitudes_override=channel_amplitudes)
exitation_channel = [
i for i in device.get_qubit_excitation_channel_list(qubit_id).keys()
][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel // 2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id,
awg=device.modem.awg,
awg_amp=1,
use_modulation=True,
pre_pulses=[],
control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
#device.modem.awg.set_sequence(ex_seq.params['sequencer_id'], ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
readout_sequencer = sequence_control.define_readout_control_seq(
device, readout_pulse)
readout_sequencer.start()
class ParameterSetter:
def __init__(self):
self.ex_sequencers = ex_sequencers
self.prepare_seq = []
self.readout_sequencer = readout_sequencer
self.delay_seq_generator = delay_seq_generator
self.lengths = lengths
self.control_sequence = control_sequence
# Create preparation sequence
self.prepare_seq.extend(ex_pulse.get_pulse_sequence(0))
if self.delay_seq_generator is None:
self.prepare_seq.extend([device.pg.pmulti(device, 0)])
self.prepare_seq.extend(
[device.pg.pmulti(device, self.lengths)])
self.prepare_seq.extend([device.pg.pmulti(device, 0)])
else:
self.pre_pause, self.delay_sequence, self.post_pause = self.delay_seq_generator(
self.lengths)
self.prepare_seq.extend(self.pre_pause)
self.prepare_seq.extend(self.delay_sequence)
self.prepare_seq.extend(self.post_pause)
# Set preparation sequence
sequence_control.set_preparation_sequence(device,
self.ex_sequencers,
self.prepare_seq)
self.readout_sequencer.start()
def set_delay(self, length):
if self.delay_seq_generator is None:
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
else:
if length == self.lengths[0]:
self.readout_sequencer.awg.stop_seq(
self.readout_sequencer.params['sequencer_id'])
self.pre_pause, self.delay_sequence, self.post_pause = self.delay_seq_generator(
self.lengths)
self.prepare_seq[-2] = self.delay_sequence[0]
sequence_control.set_preparation_sequence(
device, self.ex_sequencers, self.prepare_seq,
self.control_sequence)
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
self.readout_sequencer.awg.start_seq(
self.readout_sequencer.params['sequencer_id'])
else:
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
setter = ParameterSetter()
references = {
'ex_pulse':
ex_pulse.id,
'frequency_controls':
device.get_frequency_control_measurement_id(qubit_id=qubit_id)
}
references.update(additional_references)
if hasattr(measurer, 'references'):
references.update(measurer.references)
fitter_arguments = ('iq' + qubit_id, exp_fitter(), -1,
np.arange(len(extra_sweep_args)))
metadata = {
'qubit_id': qubit_id,
'transition': transition,
'extra_sweep_args': str(len(extra_sweep_args)),
'readout_delay': str(readout_delay)
}
metadata.update(additional_metadata)
measurement = device.sweeper.sweep_fit_dataset_1d_onfly(
measurer,
*extra_sweep_args, (lengths, setter.set_delay, 'Delay', 's'),
fitter_arguments=fitter_arguments,
measurement_type=measurement_type,
metadata=metadata,
references=references)
return measurement
def Ramsey(device, qubit_id, transition='01', *extra_sweep_args, channel_amplitudes1=None, channel_amplitudes2=None, lengths=None,
target_freq_offset=None, readout_delay=0, delay_seq_generator=None, measurement_type='Ramsey',
additional_references = {}, additional_metadata = {}):
from .readout_pulse2 import get_uncalibrated_measurer
if type(lengths) is type(None):
lengths = np.arange(0,
float(device.get_qubit_constant(qubit_id=qubit_id, name='Ramsey_length')),
float(device.get_qubit_constant(qubit_id=qubit_id, name='Ramsey_step')))
#readout_pulse = get_qubit_readout_pulse(device, qubit_id)
readout_pulse, measurer = get_uncalibrated_measurer(device, qubit_id, transition)
ex_pulse1 = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi/2., channel_amplitudes_override=channel_amplitudes1)
ex_pulse2 = excitation_pulse.get_excitation_pulse(device, qubit_id, np.pi/2., channel_amplitudes_override=channel_amplitudes2)
exitation_channel = [i for i in device.get_qubit_excitation_channel_list(qubit_id).keys()][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel//2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses = [])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[], control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
#device.modem.awg.set_sequence(ex_seq.params['sequencer_id'], ex_seq)
ex_seq.start()
ex_sequencers.append(ex_seq)
readout_sequencer = sequence_control.define_readout_control_seq(device, readout_pulse)
readout_sequencer.start()
class ParameterSetter:
def __init__(self):
self.ex_sequencers=ex_sequencers
self.prepare_seq = []
self.readout_sequencer = readout_sequencer
self.delay_seq_generator = delay_seq_generator
self.lengths = lengths
self.control_sequence = control_sequence
# Create preparation sequence
self.prepare_seq.extend(ex_pulse1.get_pulse_sequence(0))
if self.delay_seq_generator is None:
self.prepare_seq.extend([device.pg.pmulti(device, 0)])
self.prepare_seq.extend([device.pg.pmulti(device, self.lengths)])
self.prepare_seq.extend([device.pg.pmulti(device, 0)])
else:
self.pre_pause, self.delay_sequence, self.post_pause = self.delay_seq_generator(self.lengths)
self.prepare_seq.extend(self.pre_pause)
self.prepare_seq.extend(self.delay_sequence)
self.prepare_seq.extend(self.post_pause)
self.prepare_seq.extend(excitation_pulse.get_s(device, qubit_id,
phase=(64/self.control_sequence.clock)*target_freq_offset*360 % 360,
fast_control='quasi-binary'))
self.prepare_seq.extend(ex_pulse2.get_pulse_sequence(0))
# Set preparation sequence
sequence_control.set_preparation_sequence(device, self.ex_sequencers, self.prepare_seq)
self.readout_sequencer.start()
def set_delay(self, length):
phase = int(np.round((length+140e-9)*self.control_sequence.clock)+64)/self.control_sequence.clock*target_freq_offset*360 % 360
#print ('length: ', length, ', phase: ', phase, ', phase register: ', int(phase/360*(2**6)))
if self.delay_seq_generator is None:
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
self.control_sequence.set_phase(int(phase/360*(2**8)))
else:
if length == self.lengths[0]:
self.readout_sequencer.awg.stop_seq(self.readout_sequencer.params['sequencer_id'])
self.pre_pause, self.delay_sequence, self.post_pause = self.delay_seq_generator(self.lengths)
self.prepare_seq[-4] = self.delay_sequence[0]
#sequence_control.set_preparation_sequence(device, self.ex_sequencers, self.prepare_seq,
#self.control_sequence)
sequence_control.set_preparation_sequence(device, self.ex_sequencers, self.prepare_seq)
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
self.control_sequence.set_phase(int(phase/360*(2**8)))
self.readout_sequencer.awg.start_seq(self.readout_sequencer.params['sequencer_id'])
else:
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
self.control_sequence.set_phase(int(phase/360*(2**8)))
def set_delay1(self, length):
self.prepare_seq[-2] = excitation_pulse.get_s(device, qubit_id,
phase=(int(np.round(length*self.control_sequence.clock)+64)/self.control_sequence.clock)*target_freq_offset*360)
if self.delay_seq_generator is None:
self.readout_sequencer.awg.stop_seq(self.readout_sequencer.params['sequencer_id'])
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
if ex_seq.params['sequencer_id'] == self.control_sequence.params['sequencer_id']:
ex_seq.awg.stop_seq(ex_seq.params['sequencer_id'])
ex_seq.clear_pulse_sequence()
for prep_seq in self.prepare_seq:
for seq_id, single_sequence in prep_seq[0].items():
if seq_id == ex_seq.params['sequencer_id']:
ex_seq.add_definition_fragment(single_sequence[0])
ex_seq.add_play_fragment(single_sequence[1])
device.modem.awg.set_sequence(ex_seq.params['sequencer_id'], ex_seq)
ex_seq.awg.start_seq(ex_seq.params['sequencer_id'])
self.readout_sequencer.awg.start_seq(self.readout_sequencer.params['sequencer_id'])
else:
if length == self.lengths[0]:
self.readout_sequencer.awg.stop_seq(self.readout_sequencer.params['sequencer_id'])
self.pre_pause, self.delay_sequence, self.post_pause = self.delay_seq_generator(self.lengths)
self.prepare_seq[-4] = self.delay_sequence
sequence_control.set_preparation_sequence(device, self.ex_sequencers, self.prepare_seq)
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
self.readout_sequencer.awg.start_seq(self.readout_sequencer.params['sequencer_id'])
else:
self.readout_sequencer.awg.stop_seq(self.readout_sequencer.params['sequencer_id'])
for ex_seq in self.ex_sequencers:
ex_seq.set_length(length)
if ex_seq.params['sequencer_id'] == self.control_sequence.params['sequencer_id']:
ex_seq.awg.stop_seq(ex_seq.params['sequencer_id'])
ex_seq.clear_pulse_sequence()
for prep_seq in self.prepare_seq:
for seq_id, single_sequence in prep_seq[0].items():
if seq_id == ex_seq.params['sequencer_id']:
ex_seq.add_definition_fragment(single_sequence[0])
ex_seq.add_play_fragment(single_sequence[1])
device.modem.awg.set_sequence(ex_seq.params['sequencer_id'], ex_seq)
ex_seq.awg.start_seq(ex_seq.params['sequencer_id'])
self.readout_sequencer.awg.start_seq(self.readout_sequencer.params['sequencer_id'])
setter = ParameterSetter()
references = {'ex_pulse1':ex_pulse1.id,
'ex_pulse2':ex_pulse2.id,
'frequency_controls':device.get_frequency_control_measurement_id(qubit_id=qubit_id),
'readout_pulse':readout_pulse.id }
references.update(additional_references)
if hasattr(measurer, 'references'):
references.update(measurer.references)
fitter_arguments = ('iq'+qubit_id, exp_sin_fitter(), -1, np.arange(len(extra_sweep_args)))
metadata = {'qubit_id': qubit_id,
'transition': transition,
'extra_sweep_args':str(len(extra_sweep_args)),
'target_offset_freq': str(target_freq_offset),
'readout_delay':str(readout_delay)}
metadata.update(additional_metadata)
measurement = device.sweeper.sweep_fit_dataset_1d_onfly(measurer,
*extra_sweep_args,
(lengths, setter.set_delay, 'Delay','s'),
fitter_arguments = fitter_arguments,
measurement_type=measurement_type,
metadata=metadata,
references=references,
on_update_divider=10)
for ex_seq in ex_sequencers:
ex_seq.stop()
readout_sequencer.stop()
return measurement
def Ramsey_process(device, qubit_id1, qubit_id2, process, channel_amplitudes1=None, channel_amplitudes2=None):
'''
:param device QubitDevice:
'''
from .readout_pulse2 import get_uncalibrated_measurer
readout_pulse, measurer = get_uncalibrated_measurer(device, qubit_id2) # we want to measure qubit 2 because otherwise wtf are we are doing the second pi/2 pulse for
phase_scan_points = int(device.get_sample_global(name='process_phase_scan_points'))
phases = np.linspace(0, 2*np.pi, phase_scan_points, endpoint=False)
ex_pulse1 = excitation_pulse.get_excitation_pulse(device, qubit_id1, np.pi/2., channel_amplitudes_override=channel_amplitudes1)
ex_pulse2 = excitation_pulse.get_excitation_pulse(device, qubit_id2, np.pi/2., channel_amplitudes_override=channel_amplitudes2)
#TODO
#New sequencer
exitation_channel = [i for i in device.get_qubit_excitation_channel_list(qubit_id1).keys()][0]
ex_channel = device.awg_channels[exitation_channel]
if ex_channel.is_iq():
control_seq_id = ex_channel.parent.sequencer_id
else:
control_seq_id = ex_channel.channel // 2
ex_sequencers = []
for seq_id in device.pre_pulses.seq_in_use:
if seq_id != control_seq_id:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[])
else:
ex_seq = zi_scripts.SIMPLESequence(sequencer_id=seq_id, awg=device.modem.awg,
awg_amp=1, use_modulation=True, pre_pulses=[], control=True)
control_sequence = ex_seq
device.pre_pulses.set_seq_offsets(ex_seq)
device.pre_pulses.set_seq_prepulses(ex_seq)
ex_sequencers.append(ex_seq)
# Create preparation sequence
prepare_seq = []
prepare_seq.extend(ex_pulse1.get_pulse_sequence(0))
# prepare_seq.append(excitation_pulse.get_s(device, qubit_id,
# phase=(round(float(ex_pulse1.metadata['length'])*control_sequence.clock/32)*32/control_sequence.clock)*target_freq_offset*360))
prepare_seq.extend(process.get_pulse_sequence())
prepare_seq.extend(excitation_pulse.get_s(device, qubit_id2, phase=phases[0]/2/np.pi*360,))
prepare_seq.extend(ex_pulse2.get_pulse_sequence(0))
# Set preparation sequence
sequence_control.set_preparation_sequence(device, ex_sequencers, prepare_seq)
readout_sequencer = sequence_control.define_readout_control_seq(device, readout_pulse)
readout_sequencer.start()
def set_phase(phase):
readout_sequencer.awg.stop_seq(readout_sequencer.params['sequencer_id'])
for ex_seq in ex_sequencers:
ex_seq.clear_pulse_sequence()
prepare_seq[-2] = excitation_pulse.get_s(device, qubit_id2, phase=phase / 2 / np.pi * 360)
sequence_control.set_preparation_sequence(device, ex_sequencers, prepare_seq)
readout_sequencer.awg.start_seq(readout_sequencer.params['sequencer_id'])
references = {'ex_pulse1':ex_pulse1.id,
'ex_pulse2':ex_pulse2.id,
('frequency_controls', qubit_id1): device.get_frequency_control_measurement_id(qubit_id=qubit_id1),
('frequency_controls', qubit_id2): device.get_frequency_control_measurement_id(qubit_id=qubit_id2),
'process': process.id}
metadata = {'q1': qubit_id1,
'q2': qubit_id2}
if hasattr(measurer, 'references'):
references.update(measurer.references)
fitter_arguments = ('iq'+qubit_id2, SinglePeriodSinFitter(), -1, [])
measurement = device.sweeper.sweep_fit_dataset_1d_onfly(measurer,
(phases, set_phase, 'Phase','radians'),
fitter_arguments = fitter_arguments,
measurement_type='Ramsey_process',
metadata=metadata,
references=references)
return measurement
def Ramsey_crosstalk(device,
target_qubit_id,
control_qubit_id,
*extra_sweep_args,
channel_amplitudes_control=None,
channel_amplitudes1=None,
channel_amplitudes2=None,
lengths=None,
target_freq_offset=None,
readout_delay=0,
delay_seq_generator=None,
measurement_type='Ramsey_crosstalk',
additional_references={}):
#if type(lengths) is type(None):
# lengths = np.arange(0,
# float(device.get_qubit_constant(qubit_id=qubit_id, name='Ramsey_length')),
# float(device.get_qubit_constant(qubit_id=qubit_id, name='Ramsey_step')))
# if we don't have a ramsey coherence scan, get one
from .readout_pulse2 import get_uncalibrated_measurer
try:
deexcited_measurement = device.exdir_db.select_measurement_by_id(get_Ramsey_coherence_measurement(device, target_qubit_id).references['fit_source'])
except:
deexcited_measurement = None
if lengths is None:
lengths = deexcited_measurement.datasets['iq'+target_qubit_id].parameters[-1].values
if target_freq_offset is None: ###TODO: make sure we don't skip oscillations due to decoherence
##(improbable but possible if the qubits are very coherent even at high crosstalks AHAHAHA)
target_freq_offset = float(deexcited_measurement.metadata['target_offset_freq'])
#readout_pulse = get_qubit_readout_pulse(device, target_qubit_id)
readout_pulse, measurer = get_uncalibrated_measurer(device, target_qubit_id)#, readout_pulse)
ex_control_pulse = excitation_pulse.get_excitation_pulse(device, control_qubit_id, np.pi, channel_amplitudes_override=channel_amplitudes_control)
ex_pulse1 = excitation_pulse.get_excitation_pulse(device, target_qubit_id, np.pi/2., channel_amplitudes_override=channel_amplitudes1)
ex_pulse2 = excitation_pulse.get_excitation_pulse(device, target_qubit_id, np.pi/2., channel_amplitudes_override=channel_amplitudes2)
def set_delay(length):
#ex_pulse_seq = [device.pg.pmulti(length+2*tail_length, *tuple(channel_pulses))]
if delay_seq_generator is None:
delay_seq = [device.pg.pmulti(length)]
else:
delay_seq = delay_seq_generator(length)
readout_delay_seq = [device.pg.pmulti(readout_delay)]
readout_trigger_seq = device.trigger_readout_seq
readout_pulse_seq = readout_pulse.pulse_sequence
device.pg.set_seq(device.pre_pulses+\
ex_control_pulse.get_pulse_sequence(0)+\
ex_pulse1.get_pulse_sequence(0)+\
delay_seq+\
ex_pulse2.get_pulse_sequence(length*target_freq_offset*2*np.pi)+\
readout_delay_seq+\
readout_trigger_seq+\
readout_pulse_seq)
references = {'ex_control_pulse':ex_control_pulse.id,
'ex_pulse1':ex_pulse1.id,
'ex_pulse2':ex_pulse2.id,
'frequency_controls':device.get_frequency_control_measurement_id(qubit_id=target_qubit_id),
}
if deexcited_measurement is not None:
references['deexcited_measurement'] = deexcited_measurement.id
if hasattr(measurer, 'references'):
references.update(measurer.references)
fitter_arguments = ('iq'+target_qubit_id, exp_sin_fitter(), -1, np.arange(len(extra_sweep_args)))
metadata = {'target_qubit_id': target_qubit_id,
'control_qubit_id': control_qubit_id,
'extra_sweep_args':str(len(extra_sweep_args)),
'target_offset_freq': str(target_freq_offset),
'readout_delay':str(readout_delay)}
references.update(additional_references)
measurement = device.sweeper.sweep_fit_dataset_1d_onfly(measurer,
*extra_sweep_args,
(lengths, set_delay, 'Delay','s'),
fitter_arguments = fitter_arguments,
measurement_type=measurement_type,
metadata=metadata,
references=references)
return measurement
def echo_process(device,
qubit_id1,
qubit_id2,
process,
channel_amplitudes1=None,
channel_amplitudes2=None):
'''
:param device QubitDevice:
'''
from .readout_pulse import get_uncalibrated_measurer
readout_pulse, measurer = get_uncalibrated_measurer(
device, qubit_id2
) # we want to measure qubit 2 because otherwise wtf are we are doing the second pi/2 pulse for
phase_scan_points = int(
device.get_sample_global(name='process_phase_scan_points'))
phases = np.linspace(0, 2 * np.pi, phase_scan_points, endpoint=False)
ex_pulse1 = excitation_pulse.get_excitation_pulse(
device,
qubit_id1,
np.pi / 2.,
channel_amplitudes_override=channel_amplitudes1)
ex_pulse_pi = excitation_pulse.get_excitation_pulse(
device,
qubit_id1,
np.pi,
channel_amplitudes_override=channel_amplitudes1)
ex_pulse2 = excitation_pulse.get_excitation_pulse(
device,
qubit_id2,
np.pi / 2.,
channel_amplitudes_override=channel_amplitudes2)
def set_phase(phase):
device.pg.set_seq(
ex_pulse1.get_pulse_sequence(0.0) + process.get_pulse_sequence() +
ex_pulse_pi(phase) + process.get_pulse_sequence() +
ex_pulse2.get_pulse_sequence(phase) + device.trigger_readout_seq +
readout_pulse.get_pulse_sequence())
references = {
'ex_pulse1':
ex_pulse1.id,
'ex_pulse_pi':
ex_pulse_pi.id,
'ex_pulse2':
ex_pulse2.id,
('frequency_controls', qubit_id1):
device.get_frequency_control_measurement_id(qubit_id=qubit_id1),
('frequency_controls', qubit_id2):
device.get_frequency_control_measurement_id(qubit_id=qubit_id2),
'process':
process.id
}
metadata = {'q1': qubit_id1, 'q2': qubit_id2}
if hasattr(measurer, 'references'):
references.update(measurer.references)
fitter_arguments = ('iq' + qubit_id2, SinglePeriodSinFitter(), -1, [])
measurement = device.sweeper.sweep_fit_dataset_1d_onfly(
measurer, (phases, set_phase, 'Phase', 'radians'),
fitter_arguments=fitter_arguments,
measurement_type='echo_process',
metadata=metadata,
references=references)
return measurement