qctrlopencontrols.driven_controls package

Submodules

qctrlopencontrols.driven_controls.driven_control module

driven_controls.driven_controls

class qctrlopencontrols.driven_controls.driven_control.DrivenControl(rabi_rates=None, azimuthal_angles=None, detunings=None, durations=None, name=None)

Bases: object

Creates a driven control. A driven is a set of segments made up of amplitude vectors and corresponding durations.

Parameters:
  • rabi_rates (numpy.ndarray, optional) – 1-D array of size nx1 where n is number of segments; Each entry is the rabi rate for the segment. Defaults to None
  • azimuthal_angles (numpy.ndarray, optional) – 1-D array of size nx1 where n is the number of segments; Each entry is the azimuthal angle for the segment; Defaults to None
  • detunings (numpy.ndarray, optional) – 1-D array of size nx1 where n is the number of segments; Each entry is the detuning angle for the segment; Defaults to None
  • durations (numpy.ndarray, optional) – 1-D array of size nx1 where n is the number of segments; Each entry is the duration of the segment (in seconds); Defaults to None
  • name (string, optional) – An optional string to name the driven control. Defaults to None.
Raises:

ArgumentsValueError – Raised when an argument is invalid.

amplitude_x

Return the X-Amplitude

Returns:X-Amplitude of each segment
Return type:numpy.ndarray
amplitude_y

Return the Y-Amplitude

Returns:Y-Amplitude of each segment
Return type:numpy.ndarray
angles

Returns the angles

Returns:Angles as 1-D array of floats
Return type:numpy.darray
directions

Returns the directions

Returns:Directions as 1-D array of floats
Return type:numpy.ndarray
duration

Returns the total duration of the control

Returns:Total duration of the control
Return type:float
export(coordinates='cylindrical', dimensionless_rabi_rate=True)

Returns a dictionary formatted for plotting using the qctrl-visualizer package.

Parameters:
  • dimensionless_rabi_rate (boolean) – If True, normalizes the Rabi rate so that its largest absolute value is 1.
  • coordinates (string) – Indicates whether the Rabi frequency should be plotted in terms of its ‘cylindrical’ or ‘cartesian’ components.
Returns:

Dictionary with plot data that can be used by the plot_controls method of the qctrl-visualizer package. It has keywords ‘Rabi rate’ and ‘Detuning’ for ‘cylindrical’ coordinates and ‘X amplitude’, ‘Y amplitude’, and ‘Detuning’ for ‘cartesian’ coordinates.

Return type:

dict

Raises:

ArgumentsValueError – Raised when an argument is invalid.

export_to_file(filename=None, file_format='Q-CTRL expanded', file_type='CSV', coordinates='cylindrical')

Prepares and saves the driven control in a file.

Parameters:
  • filename (str, optional) – Name and path of the file to save the control into. Defaults to None
  • file_format (str) – Specified file format for saving the control. Defaults to ‘Q-CTRL expanded’; Currently it does not support any other format. For detail of the Q-CTRL Expanded Format consult Q-CTRL Control Data Format <https://docs.q-ctrl.com/output-data-formats#q-ctrl-hardware> _.
  • file_type (str, optional) – One of ‘CSV’ or ‘JSON’; defaults to ‘CSV’.
  • coordinates (str, optional) – Indicates the co-ordinate system requested. Must be one of ‘Cylindrical’, ‘Cartesian’; defaults to ‘Cylindrical’

References

Q-CTRL Control Data Format <https://docs.q-ctrl.com/output-data-formats#q-ctrl-hardware> _.

Raises:ArgumentsValueError – Raised if some of the parameters are invalid.
maximum_detuning

Returns the maximum detuning of the control

Returns:The maximum detuning of the control
Return type:float
maximum_duration

Returns the maximum duration of all the control segments

Returns:The maximum duration of all the control segments
Return type:float
maximum_rabi_rate

Returns the maximum rabi rate of the control

Returns:The maximum rabi rate of the control
Return type:float
minimum_duration

Returns the minimum duration of all the control segments

Returns:The minimum duration of all the controls segments
Return type:float
number_of_segments

Returns the number of segments

Returns:The number of segments in the driven control
Return type:int
times

Returns the time of each segment within the duration of the control

Returns:Segment times as 1-D array of floats
Return type:numpy.ndarray

qctrlopencontrols.driven_controls.predefined module

driven_controls.predefined

More information and publication references to all driven controls defined here can be found at https://docs.q-ctrl.com/control-library

qctrlopencontrols.driven_controls.predefined.new_predefined_driven_control(scheme='primitive', **kwargs)

Create a new driven control

Parameters:
  • scheme (string, optional) – Defaults to None. The name of the driven control type, supported options are: - ‘primitive’ - ‘wimperis_1’ - ‘solovay_kitaev_1’ - ‘compensating_for_off_resonance_with_a_pulse_sequence’ - ‘compensating_for_off_resonance_with_a_pulse_sequence_with_wimperis’ - ‘compensating_for_off_resonance_with_a_pulse_sequence_with_solovay_kitaev’ - ‘walsh_amplitude_modulated_filter_1’ - ‘short_composite_rotation_for_undoing_length_over_and_under_shoot’ - ‘corpse_in_scrofulous’
  • kwargs (dict, optional) – options to make the corresponding control type.
Returns:

Returns a driven control corresponding to the driven_control_type.

Return type:

qctrlopencontrols.DrivenControls

Raises:

ArgumentsValueError – Raised when an argument is invalid.

Module contents

driven_controls module

qctrlopencontrols.driven_controls.BB1 = 'BB1'

First-order Wimperis control, also known as BB1

qctrlopencontrols.driven_controls.CORPSE = 'CORPSE'

Dynamically corrected control - Compensating for Off-Resonance with a Pulse Sequence (COPRSE)

qctrlopencontrols.driven_controls.CORPSE_IN_BB1 = 'CORPSE in BB1'

Concatenated dynamically corrected control - BB1 inside COPRSE

qctrlopencontrols.driven_controls.CORPSE_IN_SCROFULOUS = 'CORPSE in SCROFULOUS'

Concatenated dynamically corrected control - CORPSE inside SCROFULOUS

qctrlopencontrols.driven_controls.CORPSE_IN_SK1 = 'CORPSE in SK1'

Concatenated dynamically corrected control - First order Solovay-Kitaev inside COPRSE

qctrlopencontrols.driven_controls.LOWER_BOUND_DURATION = 1e-12

Minimum allowed duration of a control

qctrlopencontrols.driven_controls.PRIMITIVE = 'primitive'

Primitive control

qctrlopencontrols.driven_controls.SCROFULOUS = 'SCROFULOUS'

Dynamically corrected control - Short Composite Rotation For Undoing Length Over and Under Shoot (SCROFULOUS)

qctrlopencontrols.driven_controls.SK1 = 'SK1'

First-order Solovay-Kitaev control

qctrlopencontrols.driven_controls.UPPER_BOUND_DETUNING_RATE = 10000000000.0

Maximum allowed detuning rate

qctrlopencontrols.driven_controls.UPPER_BOUND_DURATION = 1000000.0

Maximum allowed duration of a control

qctrlopencontrols.driven_controls.UPPER_BOUND_RABI_RATE = 10000000000.0

Maximum allowed rabi rate

qctrlopencontrols.driven_controls.UPPER_BOUND_SEGMENTS = 10000

Maximum number of segments allowed in a control

qctrlopencontrols.driven_controls.WAMF1 = 'WAMF1'

First-order Walsh sequence control