new_periodic_sequence | API References | Q-CTRL Open Controls | References

qctrlopencontrols.new_periodic_sequence(duration, offset_count, pre_post_rotation=False, name=None)

Creates the periodic sequence.

Parameters

duration (float) – Total duration of the sequence $\tau$ (in seconds).
offset_count (int) – Number of offsets $n$ .
pre_post_rotation (bool , optional) – If True, a $X_{\pi/2}$ rotation is added at the start and end of the sequence. Defaults to False.
name (string , optional) – Name of the sequence. Defaults to None.

Returns

The periodic sequence.

Return type

DynamicDecouplingSequence

Notes

The periodic sequence ¹ is parameterized by duration $\tau$ and number of offsets $n$ . The sequence consists of $X_{\pi}$ operations at offsets given by

t_i = \frac{\tau}{n + 1} \;,

where $i = 1, \cdots, n$ .

References

[1] L. Viola and E. Knill, Physical Review Letters 90, 037901 (2003).