qblox_scheduler.device_under_test.nv_element#

Device elements for NV centers.

Currently only for the electronic qubit, but could be extended for other qubits (eg. carbon qubit).

Classes#

`Ports`	Submodule containing the ports.
`ClockFrequencies`	Submodule with clock frequencies specifying the transitions to address.
`SpectroscopyOperationNV`	Convert the SpectroscopyOperation into a hermite, square, or gaussian microwave pulse.
`ResetSpinpump`	Submodule containing parameters to run the spinpump laser with a square pulse.
`Measure`	Submodule containing parameters to read out the spin state of the NV center.
`ChargeReset`	Submodule containing parameters to run an ionization laser square pulse to reset the NV.
`CRCount`	Submodule containing parameters to run the ionization laser and the spin pump laser.
`RxyNV`	Submodule containing parameters to perform an Rxy operation
`BasicElectronicNVElement`	A device element representing an electronic qubit in an NV center.

Module Contents#

class Ports(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing the ports.

microwave: str = None[source]#: Name of the element’s microwave port.

optical_control: str = None[source]#: Port to control the device element with optical pulses.

optical_readout: str = None[source]#: Port to readout photons from the device element.

_fill_defaults() → None[source]#

class ClockFrequencies(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule with clock frequencies specifying the transitions to address.

f01: qblox_scheduler.structure.types.Frequency = None[source]#: Microwave frequency to resonantly drive the electron spin state of a negatively charged diamond NV center from the 0-state to 1-state :cite:t:`DOHERTY20131`.

spec: qblox_scheduler.structure.types.Frequency = None[source]#: Parameter that is swept for a spectroscopy measurement. It does not track properties of the device element.

ge0: qblox_scheduler.structure.types.Frequency = None[source]#: Transition frequency from the m_s=0 state to the E_x,y state.

ge1: qblox_scheduler.structure.types.Frequency = None[source]#: Transition frequency from the m_s=+-1 state to any of the A_1, A_2, or E_1,2 states.

ionization: qblox_scheduler.structure.types.Frequency = None[source]#: Frequency of the green ionization laser for manipulation of the NVs charge state.

class SpectroscopyOperationNV(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Convert the SpectroscopyOperation into a hermite, square, or gaussian microwave pulse.

This class contains parameters with a certain amplitude and duration for spin-state manipulation.

The modulation frequency of the pulse is determined by the clock spec in ClockFrequencies.

amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of spectroscopy pulse.

duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of the MW pulse.

pulse_shape: Literal['SquarePulse', 'SkewedHermitePulse', 'GaussPulse'] = None[source]#: Shape of the MW pulse.

class ResetSpinpump(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing parameters to run the spinpump laser with a square pulse.

This should reset the NV to the \(|0\rangle\) state.

amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of reset pulse.

duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of reset pulse.

class Measure(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing parameters to read out the spin state of the NV center.

Excitation with a readout laser from the \(|0\rangle\) to an excited state. Acquisition of photons when decaying back into the \(|0\rangle\) state.

pulse_amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of readout pulse.

pulse_duration: qblox_scheduler.structure.types.Duration = None[source]#: Readout pulse duration.

acq_duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of the acquisition.

acq_delay: qblox_scheduler.structure.types.Delay = None[source]#: Delay between the start of the readout pulse and the start of the acquisition.

acq_channel: collections.abc.Hashable = None[source]#: Acquisition channel of this device element.

time_source: qblox_scheduler.enums.TimeSource = None[source]#: Optional time source, in case the Timetag acquisition protocols are used. Please see that protocol for more information.

time_ref: qblox_scheduler.enums.TimeRef = None[source]#: Optional time reference, in case Timetag or TimetagTrace acquisition protocols are used. Please see those protocols for more information.

class ChargeReset(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing parameters to run an ionization laser square pulse to reset the NV.

After resetting, the qubit should be in its negatively charged state.

amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of charge reset pulse.

duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of the charge reset pulse.

class CRCount(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing parameters to run the ionization laser and the spin pump laser.

This uses a photon count to perform a charge and resonance count.

readout_pulse_amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of readout pulse.

spinpump_pulse_amplitude: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of spin-pump pulse.

readout_pulse_duration: qblox_scheduler.structure.types.Duration = None[source]#: Readout pulse duration.

spinpump_pulse_duration: qblox_scheduler.structure.types.Duration = None[source]#: Spin-pump pulse duration.

acq_duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of the acquisition.

acq_delay: qblox_scheduler.structure.types.Delay = None[source]#: Delay between the start of the readout pulse and the start of the acquisition.

acq_channel: collections.abc.Hashable = None[source]#: Default acquisition channel of this device element.

class RxyNV(/, name, *, parent: SchedulerBaseModel | None = None, **data: Any)[source]#

Bases: qblox_scheduler.structure.model.SchedulerSubmodule

Submodule containing parameters to perform an Rxy operation using a Hermite or Gaussian pulse.

amp180: qblox_scheduler.structure.types.Amplitude = None[source]#: Amplitude of \(\pi\) pulse.

skewness: float = None[source]#: First-order amplitude to the Hermite pulse envelope.

duration: qblox_scheduler.structure.types.Duration = None[source]#: Duration of the pi pulse.

pulse_shape: Literal['SkewedHermitePulse', 'GaussPulse'] = None[source]#: Shape of the pi pulse.

class BasicElectronicNVElement(/, name, **data: Any)[source]#

Bases: qblox_scheduler.device_under_test.device_element.DeviceElement

A device element representing an electronic qubit in an NV center.

The submodules contain the necessary device element parameters to translate higher-level operations into pulses. Please see the documentation of these classes.

Examples

Qubit parameters can be set through submodule attributes

from qblox_scheduler import BasicElectronicNVElement

device_element = BasicElectronicNVElement("q2")

device_element.rxy.amp180 = 0.1
device_element.measure.pulse_amplitude = 0.25
device_element.measure.pulse_duration = 300e-9
device_element.measure.acq_delay = 430e-9
device_element.measure.acq_duration = 1e-6
...

Ellipsis

element_type: Literal['BasicElectronicNVElement'] = 'BasicElectronicNVElement'[source]#

spectroscopy_operation: SpectroscopyOperationNV[source]#

ports: Ports[source]#

clock_freqs: ClockFrequencies[source]#

reset: ResetSpinpump[source]#

charge_reset: ChargeReset[source]#

measure: Measure[source]#

pulse_compensation: qblox_scheduler.device_under_test.transmon_element.PulseCompensationModule[source]#

cr_count: CRCount[source]#

rxy: RxyNV[source]#

_generate_config() → dict[str, dict[str, qblox_scheduler.backends.graph_compilation.OperationCompilationConfig]][source]#

Generate part of the device configuration specific to a single qubit.

This method is intended to be used when this object is part of a device object containing multiple elements.

generate_device_config() → qblox_scheduler.backends.graph_compilation.DeviceCompilationConfig[source]#

Generate a valid device config for the qblox-scheduler.

This makes use of the compile_circuit_to_device_with_config_validation() function.

This enables the settings of this qubit to be used in isolation.