qit.seq.knill

qit.seq.knill(phi=0)

Sequence for robust pi pulses.

Parameters

phi (float) – phase angle

Returns

Knill pi rotation sequence

Return type

Seq

The target rotation in the NMR notation is \(\pi_\phi\) followed by \(R_z(-\pi/3)\). In an experimental setting the Z rotation can often be absorbed by a reference frame change that does not affect the measurement results [19].

The Knill sequence is quite robust against off-resonance errors, and somewhat robust against pulse strenght errors.