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 the right
`phase_shift`(...)	Generate a `ShiftClockPhase` that shifts the phase of the `clock` by an angle theta.
`composite_square_pulse`(...)	An example composite pulse to implement a CZ gate.
`nv_spec_pulse_mw`(...)	Generate hermite pulse for spectroscopy experiment.

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) – 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) – 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.

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