pulse_factories#

A module containing factory functions for pulses on the quantum-device layer.

These factories are used to take a parametrized representation of on a operation and use that to create an instance of the operation itself.

Module Contents#

Functions#

rxy_drag_pulse(...)

Generate a DRAGPulse that achieves the right

rxy_gauss_pulse(...)

Generate a Gaussian drive with GaussPulse that achieves

phase_shift(...)

Generate a ShiftClockPhase that shifts the phase of the

composite_square_pulse(...)

An example composite pulse to implement a CZ gate.

rxy_hermite_pulse(...)

Generate a Gaussian drive with GaussPulse that achieves

nv_spec_pulse_mw(...)

Generate hermite pulse for spectroscopy experiment.

spin_init_pulse(→ quantify_scheduler.schedules.Schedule)

Device compilation of the spin init operation.
rxy_drag_pulse(amp180: float, motzoi: float, theta: float, phi: float, port: str, duration: float, clock: str, reference_magnitude: quantify_scheduler.operations.pulse_library.ReferenceMagnitude | None = None) → quantify_scheduler.operations.pulse_library.DRAGPulse[source]#

Generate a DRAGPulse that achieves the right rotation angle theta based on a calibrated pi-pulse amplitude and motzoi parameter based on linear interpolation of the pulse amplitudes.

Parameters:

  • amp180 – Unitless amplitude of excitation pulse to get the maximum 180 degree theta.

  • motzoi – Unitless amplitude of the derivative component, the DRAG-pulse parameter.

  • theta – Angle in degrees to rotate around an equatorial axis on the Bloch sphere.

  • phi – Phase of the pulse in degrees.

  • port – Name of the port where the pulse is played.

  • duration – Duration of the pulse in seconds.

  • clock – Name of the clock used to modulate the pulse.

  • reference_magnitude (ReferenceMagnitude,) – Optional scaling value and unit for the unitless amplitude. Uses settings in hardware config if not provided.

Returns:

DRAGPulse operation.

rxy_gauss_pulse(amp180: float, theta: float, phi: float, port: str, duration: float, clock: str, reference_magnitude: quantify_scheduler.operations.pulse_library.ReferenceMagnitude | None = None) → quantify_scheduler.operations.pulse_library.GaussPulse[source]#

Generate a Gaussian drive with GaussPulse that achieves the right rotation angle theta based on a calibrated pi-pulse amplitude.

Parameters:

  • amp180 – Unitless amplitude of excitation pulse to get the maximum 180 degree theta.

  • theta – Angle in degrees to rotate around an equatorial axis on the Bloch sphere.

  • phi – Phase of the pulse in degrees.

  • port – Name of the port where the pulse is played.

  • duration – Duration of the pulse in seconds.

  • clock – Name of the clock used to modulate the pulse.

  • reference_magnitude (ReferenceMagnitude,) – Optional scaling value and unit for the unitless amplitude. Uses settings in hardware config if not provided.

Returns:

GaussPulse operation.

phase_shift(theta: float, clock: str) → quantify_scheduler.operations.pulse_library.ShiftClockPhase[source]#

Generate a ShiftClockPhase that shifts the phase of the clock by an angle theta.

Parameters:

  • theta – Angle to shift the clock by, in degrees.

  • clock – Name of the clock to shift.

Returns:

ShiftClockPhase operation.

composite_square_pulse(square_amp: float, square_duration: float, square_port: str, square_clock: str, virt_z_parent_qubit_phase: float, virt_z_parent_qubit_clock: str, virt_z_child_qubit_phase: float, virt_z_child_qubit_clock: str, reference_magnitude: quantify_scheduler.operations.pulse_library.ReferenceMagnitude | None = None, t0: float = 0) → quantify_scheduler.operations.pulse_library.SquarePulse[source]#

An example composite pulse to implement a CZ gate.

It applies the square pulse and then corrects for the phase shifts on both the qubits.

Parameters:

  • square_amp – Amplitude of the square envelope.

  • square_duration – The square pulse duration in seconds.

  • square_port – Port of the pulse, must be capable of playing a complex waveform.

  • square_clock – Clock used to modulate the pulse.

  • virt_z_parent_qubit_phase – The phase shift in degrees applied to the parent qubit.

  • virt_z_parent_qubit_clock – The clock of which to shift the phase applied to the parent qubit.

  • virt_z_child_qubit_phase – The phase shift in degrees applied to the child qubit.

  • virt_z_child_qubit_clock – The clock of which to shift the phase applied to the child qubit.

  • reference_magnitude (ReferenceMagnitude,) – Optional scaling value and unit for the unitless amplitude. Uses settings in hardware config if not provided.

  • t0 – Time in seconds when to start the pulses relative to the start time of the Operation in the Schedule.

Returns:

SquarePulse operation.

rxy_hermite_pulse(amp180: float, skewness: float, theta: float, phi: float, port: str, duration: float, clock: str, reference_magnitude: quantify_scheduler.operations.pulse_library.ReferenceMagnitude | None = None) → quantify_scheduler.operations.pulse_library.SkewedHermitePulse[source]#

Generate a Gaussian drive with GaussPulse that achieves the right rotation angle theta based on a calibrated pi-pulse amplitude.

Parameters:

  • amp180 – Unitless amplitude of excitation pulse to get the maximum 180 degree theta.

  • skewness – First-order amplitude correction to the Hermite pulse. Skewness of 0 returns a standard hermite pulse.

  • theta – Angle in degrees to rotate around an equatorial axis on the Bloch sphere.

  • phi – Phase of the pulse in degrees.

  • port – Name of the port where the pulse is played.

  • duration – Duration of the pulse in seconds.

  • clock – Name of the clock used to modulate the pulse.

  • reference_magnitude (ReferenceMagnitude,) – hardware config if not provided.

Returns:

GaussPulse operation.

nv_spec_pulse_mw(duration: float, amplitude: float, clock: str, port: str, reference_magnitude: quantify_scheduler.operations.pulse_library.ReferenceMagnitude | None = None) → quantify_scheduler.operations.pulse_library.SkewedHermitePulse[source]#

Generate hermite pulse for spectroscopy experiment.

This is a simplified version of the SkewedHermitePulse. It is not skewed. It also sets the phase to 0. This means that no rotation about the z-axis is applied on the qubit.

Parameters:

  • duration – Pulse duration in seconds

  • amplitude – Amplitude of the hermite pulse

  • skewness – Skewness of hermite pulse

  • clock – Name of clock for frequency modulation of hermite pulse

  • port – Name of port where hermite pulse is applied

  • reference_magnitude (ReferenceMagnitude,) – Optional scaling value and unit for the unitless amplitude. Uses settings in hardware config if not provided.

Returns:

Hermite pulse operation

spin_init_pulse(square_duration: float, ramp_diff: float, parent_port: str, parent_clock: str, parent_square_amp: float, parent_ramp_amp: float, parent_ramp_rate: float, child_port: str, child_clock: str, child_square_amp: float, child_ramp_amp: float, child_ramp_rate: float) → quantify_scheduler.schedules.Schedule[source]#

Device compilation of the spin init operation.