# Repository: https://gitlab.com/quantify-os/quantify-scheduler
# Licensed according to the LICENCE file on the main branch
"""Module containing schedules for common spectroscopy experiments."""
from __future__ import annotations
from typing import Optional
import numpy as np
from quantify_scheduler.enums import BinMode
from quantify_scheduler.operations.acquisition_library import SSBIntegrationComplex
from quantify_scheduler.operations.gate_library import Measure, Reset
from quantify_scheduler.operations.nv_native_library import ChargeReset, CRCount
from quantify_scheduler.operations.pulse_library import (
IdlePulse,
SetClockFrequency,
SquarePulse,
)
from quantify_scheduler.operations.shared_native_library import SpectroscopyOperation
from quantify_scheduler.resources import ClockResource
from quantify_scheduler.schedules.schedule import Schedule
[docs]
def heterodyne_spec_sched(
pulse_amp: float,
pulse_duration: float,
frequency: float,
acquisition_delay: float,
integration_time: float,
port: str,
clock: str,
init_duration: float = 10e-6,
repetitions: int = 1,
port_out: Optional[str] = None,
) -> Schedule:
"""
Generate a schedule for performing heterodyne spectroscopy.
Parameters
----------
pulse_amp
Amplitude of the spectroscopy pulse in Volt.
pulse_duration
Duration of the spectroscopy pulse in seconds.
frequency
Frequency of the spectroscopy pulse in Hertz.
acquisition_delay
Start of the data acquisition with respect to the start of the spectroscopy
pulse in seconds.
integration_time
Integration time of the data acquisition in seconds.
port
Location on the device where the acquisition is performed.
clock
Reference clock used to track the spectroscopy frequency.
init_duration
The relaxation time or dead time.
repetitions
The amount of times the Schedule will be repeated.
port_out
Output port on the device where the pulse should be applied. If `None`, then use
the same as `port`.
"""
sched = Schedule("Heterodyne spectroscopy", repetitions)
sched.add_resource(ClockResource(name=clock, freq=frequency))
sched.add(IdlePulse(duration=init_duration), label="buffer")
if port_out is None:
port_out = port
pulse = sched.add(
SquarePulse(
duration=pulse_duration,
amp=pulse_amp,
port=port_out,
clock=clock,
),
label="spec_pulse",
)
sched.add(
SSBIntegrationComplex(
duration=integration_time,
port=port,
clock=clock,
acq_index=0,
acq_channel=0,
),
ref_op=pulse,
ref_pt="start",
rel_time=acquisition_delay,
label="acquisition",
)
return sched
[docs]
def heterodyne_spec_sched_nco(
pulse_amp: float,
pulse_duration: float,
frequencies: np.ndarray,
acquisition_delay: float,
integration_time: float,
port: str,
clock: str,
init_duration: float = 10e-6,
repetitions: int = 1,
port_out: Optional[str] = None,
) -> Schedule:
"""
Generate a batched schedule for performing fast heterodyne spectroscopy
using the :class:`~quantify_scheduler.operations.pulse_library.SetClockFrequency`
operation for doing an NCO sweep.
.. admonition:: Example use of the ``heterodyne_spec_sched_nco`` schedule
:class: tip
.. jupyter-execute::
import numpy as np
from qcodes.instrument.parameter import ManualParameter
from quantify_scheduler.gettables import ScheduleGettable
from quantify_scheduler.device_under_test.quantum_device import QuantumDevice
from quantify_scheduler.device_under_test.transmon_element import BasicTransmonElement
from quantify_scheduler.schedules.spectroscopy_schedules import heterodyne_spec_sched_nco
quantum_device = QuantumDevice(name="quantum_device")
q0 = BasicTransmonElement("q0")
quantum_device.add_element(q0)
...
# Manual parameter for batched schedule
ro_freq = ManualParameter("ro_freq", unit="Hz")
ro_freq.batched = True
ro_freqs = np.linspace(start=4.5e9, stop=5.5e9, num=11)
quantum_device.cfg_sched_repetitions(5)
# Configure the gettable
qubit = quantum_device.get_element("q0")
schedule_kwargs = {
"pulse_amp": qubit.measure.pulse_amp(),
"pulse_duration": qubit.measure.pulse_duration(),
"frequencies": ro_freqs,
"acquisition_delay": qubit.measure.acq_delay(),
"integration_time": qubit.measure.integration_time(),
"port": qubit.ports.readout(),
"clock": qubit.name + ".ro",
"init_duration": qubit.reset.duration(),
}
spec_gettable = ScheduleGettable(
quantum_device=quantum_device,
schedule_function=heterodyne_spec_sched_nco,
schedule_kwargs=schedule_kwargs,
real_imag=False,
batched=True,
)
...
quantum_device.close()
q0.close()
Parameters
----------
pulse_amp
Amplitude of the spectroscopy pulse in Volt.
pulse_duration
Duration of the spectroscopy pulse in seconds.
frequencies
Sample frequencies for the spectroscopy pulse in Hertz.
acquisition_delay
Start of the data acquisition with respect to the start of the spectroscopy
pulse in seconds.
integration_time
Integration time of the data acquisition in seconds.
port
Location on the device where the acquisition is performed.
clock
Reference clock used to track the spectroscopy frequency.
init_duration
The relaxation time or dead time.
repetitions
The amount of times the Schedule will be repeated.
port_out
Output port on the device where the pulse should be applied. If `None`, then use
the same as `port`.
"""
sched = Schedule("Fast heterodyne spectroscopy (NCO sweep)", repetitions)
sched.add_resource(ClockResource(name=clock, freq=frequencies.flat[0]))
if port_out is None:
port_out = port
for acq_idx, freq in enumerate(frequencies):
sched.add(IdlePulse(duration=init_duration), label=f"buffer {acq_idx}")
sched.add(
SetClockFrequency(clock=clock, clock_freq_new=freq),
label=f"set_freq {acq_idx} ({clock} {freq:e} Hz)",
)
spec_pulse = sched.add(
SquarePulse(
duration=pulse_duration,
amp=pulse_amp,
port=port_out,
clock=clock,
),
label=f"spec_pulse {acq_idx})",
)
sched.add(
SSBIntegrationComplex(
duration=integration_time,
port=port,
clock=clock,
acq_index=acq_idx,
acq_channel=0,
bin_mode=BinMode.AVERAGE,
),
ref_op=spec_pulse,
ref_pt="start",
rel_time=acquisition_delay,
label=f"acquisition {acq_idx})",
)
return sched
[docs]
def two_tone_spec_sched(
spec_pulse_amp: float,
spec_pulse_duration: float,
spec_pulse_port: str,
spec_pulse_clock: str,
spec_pulse_frequency: float,
ro_pulse_amp: float,
ro_pulse_duration: float,
ro_pulse_delay: float,
ro_pulse_port: str,
ro_pulse_clock: str,
ro_pulse_frequency: float,
ro_acquisition_delay: float,
ro_integration_time: float,
init_duration: float = 10e-6,
repetitions: int = 1,
) -> Schedule:
"""
Generate a schedule for performing two-tone spectroscopy.
Parameters
----------
spec_pulse_amp
Amplitude of the spectroscopy pulse in Volt.
spec_pulse_duration
Duration of the spectroscopy pulse in seconds.
spec_pulse_port
Location on the device where the spectroscopy pulse should be applied.
spec_pulse_clock
Reference clock used to track the spectroscopy frequency.
spec_pulse_frequency
Frequency of the spectroscopy pulse in Hertz.
ro_pulse_amp
Amplitude of the readout (spectroscopy) pulse in Volt.
ro_pulse_duration
Duration of the readout (spectroscopy) pulse in seconds.
ro_pulse_delay
Time between the end of the spectroscopy pulse and the start of the readout
(spectroscopy) pulse.
ro_pulse_port
Location on the device where the readout (spectroscopy) pulse should be applied.
ro_pulse_clock
Reference clock used to track the readout (spectroscopy) frequency.
ro_pulse_frequency
Frequency of the readout (spectroscopy) pulse in Hertz.
ro_acquisition_delay
Start of the data acquisition with respect to the start of the readout pulse in
seconds.
ro_integration_time
Integration time of the data acquisition in seconds.
init_duration
The relaxation time or dead time.
repetitions
The amount of times the Schedule will be repeated.
"""
sched = Schedule("Two-tone spectroscopy", repetitions)
sched.add_resource(ClockResource(name=spec_pulse_clock, freq=spec_pulse_frequency))
sched.add_resource(ClockResource(name=ro_pulse_clock, freq=ro_pulse_frequency))
sched.add(
IdlePulse(duration=init_duration),
label="buffer",
)
sched.add(
SquarePulse(
duration=spec_pulse_duration,
amp=spec_pulse_amp,
port=spec_pulse_port,
clock=spec_pulse_clock,
),
label="spec_pulse",
)
ro_pulse = sched.add(
SquarePulse(
duration=ro_pulse_duration,
amp=ro_pulse_amp,
port=ro_pulse_port,
clock=ro_pulse_clock,
),
label="readout_pulse",
rel_time=ro_pulse_delay,
)
sched.add(
SSBIntegrationComplex(
duration=ro_integration_time,
port=ro_pulse_port,
clock=ro_pulse_clock,
acq_index=0,
acq_channel=0,
),
ref_op=ro_pulse,
ref_pt="start",
rel_time=ro_acquisition_delay,
label="acquisition",
)
return sched
[docs]
def two_tone_spec_sched_nco(
spec_pulse_amp: float,
spec_pulse_duration: float,
spec_pulse_port: str,
spec_pulse_clock: str,
spec_pulse_frequencies: np.ndarray,
ro_pulse_amp: float,
ro_pulse_duration: float,
ro_pulse_delay: float,
ro_pulse_port: str,
ro_pulse_clock: str,
ro_pulse_frequency: float,
ro_acquisition_delay: float,
ro_integration_time: float,
init_duration: float,
repetitions: int = 1,
) -> Schedule:
"""
Generate a batched schedule for performing fast two-tone spectroscopy using
the :class:`~quantify_scheduler.operations.pulse_library.SetClockFrequency`
operation for doing an NCO sweep.
For long-lived qubits, it is advisable to use a small number of repetitions and
compensate by doing continuous spectroscopy (low amplitude, long duration pulse with
simultaneous long readout).
The "dead-time" between two data points needs to be sufficient to properly reset the
qubit. That means that `init_duration` should be >> T1 (so typically >200us).
.. admonition:: Example use of the ``two_tone_spec_sched_nco`` schedule
:class: tip
.. jupyter-execute::
import numpy as np
from qcodes.instrument.parameter import ManualParameter
from quantify_scheduler.gettables import ScheduleGettable
from quantify_scheduler.device_under_test.quantum_device import QuantumDevice
from quantify_scheduler.device_under_test.transmon_element import BasicTransmonElement
from quantify_scheduler.schedules.spectroscopy_schedules import two_tone_spec_sched_nco
quantum_device = QuantumDevice(name="quantum_device")
q0 = BasicTransmonElement("q0")
quantum_device.add_element(q0)
...
# Manual parameter for batched schedule
spec_freq = ManualParameter("spec_freq", unit="Hz")
spec_freq.batched = True
spec_freqs = np.linspace(start=4.5e9, stop=5.5e9, num=11)
quantum_device.cfg_sched_repetitions(5)
# Configure the gettable
qubit = quantum_device.get_element("q0")
schedule_kwargs = {
"spec_pulse_amp": 0.5,
"spec_pulse_duration": 8e-6,
"spec_pulse_port": qubit.ports.microwave(),
"spec_pulse_clock": qubit.name + ".01",
"spec_pulse_frequencies": spec_freqs,
"ro_pulse_amp": qubit.measure.pulse_amp(),
"ro_pulse_duration": qubit.measure.pulse_duration(),
"ro_pulse_delay": 300e-9,
"ro_pulse_port": qubit.ports.readout(),
"ro_pulse_clock": qubit.name + ".ro",
"ro_pulse_frequency": 7.04e9,
"ro_acquisition_delay": qubit.measure.acq_delay(),
"ro_integration_time": qubit.measure.integration_time(),
"init_duration": 300e-6,
}
spec_gettable = ScheduleGettable(
quantum_device=quantum_device,
schedule_function=two_tone_spec_sched_nco,
schedule_kwargs=schedule_kwargs,
real_imag=False,
batched=True,
)
...
quantum_device.close()
q0.close()
Parameters
----------
spec_pulse_amp
Amplitude of the spectroscopy pulse in Volt.
spec_pulse_duration
Duration of the spectroscopy pulse in seconds.
spec_pulse_port
Location on the device where the spectroscopy pulse should be applied.
spec_pulse_clock
Reference clock used to track the spectroscopy frequency.
spec_pulse_frequencies
Sample frequencies for the spectroscopy pulse in Hertz.
ro_pulse_amp
Amplitude of the readout (spectroscopy) pulse in Volt.
ro_pulse_duration
Duration of the readout (spectroscopy) pulse in seconds.
ro_pulse_delay
Time between the end of the spectroscopy pulse and the start of the readout
(spectroscopy) pulse.
ro_pulse_port
Location on the device where the readout (spectroscopy) pulse should be applied.
ro_pulse_clock
Reference clock used to track the readout (spectroscopy) frequency.
ro_pulse_frequency
Frequency of the readout (spectroscopy) pulse in Hertz.
ro_acquisition_delay
Start of the data acquisition with respect to the start of the readout pulse in
seconds.
ro_integration_time
Integration time of the data acquisition in seconds.
init_duration
The relaxation time or dead time.
repetitions
The amount of times the Schedule will be repeated.
"""
sched = Schedule("Fast two-tone spectroscopy (NCO sweep)", repetitions)
sched.add_resources(
[
ClockResource(name=spec_pulse_clock, freq=spec_pulse_frequencies.flat[0]),
ClockResource(name=ro_pulse_clock, freq=ro_pulse_frequency),
]
)
for acq_idx, spec_pulse_freq in enumerate(spec_pulse_frequencies):
sched.add(IdlePulse(duration=init_duration), label=f"buffer {acq_idx}")
sched.add(
SetClockFrequency(clock=spec_pulse_clock, clock_freq_new=spec_pulse_freq),
label=f"set_freq {acq_idx} ({spec_pulse_clock} {spec_pulse_freq:e} Hz)",
)
spec_pulse = sched.add(
SquarePulse(
duration=spec_pulse_duration,
amp=spec_pulse_amp,
port=spec_pulse_port,
clock=spec_pulse_clock,
),
label=f"spec_pulse {acq_idx}",
)
ro_pulse = sched.add(
SquarePulse(
duration=ro_pulse_duration,
amp=ro_pulse_amp,
port=ro_pulse_port,
clock=ro_pulse_clock,
),
ref_op=spec_pulse,
ref_pt="end",
rel_time=ro_pulse_delay,
label=f"readout_pulse {acq_idx}",
)
sched.add(
SSBIntegrationComplex(
duration=ro_integration_time,
port=ro_pulse_port,
clock=ro_pulse_clock,
acq_index=acq_idx,
acq_channel=0,
bin_mode=BinMode.AVERAGE,
),
ref_op=ro_pulse,
ref_pt="start",
rel_time=ro_acquisition_delay,
label=f"acquisition {acq_idx}",
)
return sched
[docs]
def nv_dark_esr_sched(
qubit: str,
repetitions: int = 1,
) -> Schedule:
"""
Generates a schedule for a dark ESR experiment on an NV-center.
The spectroscopy frequency is taken from the device element. Please use the clock
specified in the `spectroscopy_operation` entry of the device config.
This schedule can currently not be compiled with the Zurich Instruments backend.
Parameters
----------
qubit
Name of the `DeviceElement` representing the NV-center.
repetitions
Number of schedule repetitions.
Returns
-------
:
Schedule with a single frequency
"""
sched = Schedule("Dark ESR Schedule", repetitions=repetitions)
sched.add(ChargeReset(qubit), label="Charge reset")
sched.add(CRCount(qubit, acq_index=0), label="CRCount pre")
sched.add(Reset(qubit), label="Reset")
sched.add(SpectroscopyOperation(qubit), label="Spectroscopy")
sched.add(Measure(qubit, acq_index=1), label="Measure")
sched.add(CRCount(qubit, acq_index=2), label="CRCount post")
return sched
[docs]
def nv_dark_esr_sched_nco(
qubit: str,
spec_clock: str,
spec_frequencies: np.ndarray,
repetitions: int = 1,
) -> Schedule:
"""
Generates a schedule for a dark ESR experiment on an NV-center, in which
the NCO frequency is swept.
.. note::
This schedule currently cannot be compiled with the Zurich Instruments backend.
Parameters
----------
qubit
Name of the `DeviceElement` representing the NV-center.
spec_clock
Reference clock of the spectroscopy operation.
spec_frequencies
Sample frequencies for the spectroscopy pulse in Hertz.
repetitions
Number of schedule repetitions.
Returns
-------
:
Schedule with NCO frequency sweeping for spectroscopy operation.
"""
sched = Schedule("Dark ESR Schedule (NCO sweep)", repetitions=repetitions)
sched.add(ChargeReset(qubit), label="Charge reset pre 0")
sched.add(CRCount(qubit, acq_index=0), label="CRCount pre 0")
for idx, spec_freq in enumerate(spec_frequencies):
sched.add(
SetClockFrequency(clock=spec_clock, clock_freq_new=spec_freq),
label=f"set_freq ({spec_clock} {spec_freq:e} Hz)",
)
sched.add(Reset(qubit), label=f"Reset {idx}")
sched.add(
SpectroscopyOperation(qubit), label=f"Spectroscopy ({spec_freq:e} Hz)"
)
sched.add(Measure(qubit, acq_index=idx * 2 + 1), label=f"Measure {idx}")
sched.add(CRCount(qubit, acq_index=idx * 2 + 2), label=f"CRCount post {idx}")
return sched
