new_spin_echo_sequence

qctrlopencontrols.new_spin_echo_sequence(duration, pre_post_rotation=False, name=None)

Creates the spin echo sequence.

Parameters

• duration (float) – Total duration of the sequence $\tau$ (in seconds).
• 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 spin echo sequence.

Return type

DynamicDecouplingSequence

Notes

The spin echo sequence ¹ is parameterized by duration $\tau$. There is a single $X_{\pi}$ unitary operation at $t_1 = \frac{\tau}{2}$.

References

• [1] E. L. Hahn, Physical Review 80, 580 (1950).