new_carr_purcell_sequence

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

Creates the Carr-Purcell 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 Carr-Purcell sequence.

Return type

DynamicDecouplingSequence

SEE ALSO

new_cpmg_sequence

Notes

The Carr-Purcell sequence ¹ is parameterized by the number of offsets $n$ and duration $\tau$. The sequence is made up of a set of $X_{\pi}$ operations applied at

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

References

• [1] H. Y. Carr and E. M. Purcell, Physical Review 94, 630 (1954).