Pi/2 pulse

[sorewachigauyo]

Currently qibolab generates R(X) pulse of varying angles by changing the amplitude from a pi-pulse. By varying the amplitude/power of the pulse, the magnitude of the stark shift on the qubit frequency changes and it does not guarantee the precision of the rotation (rather, the axis of rotation also changes).

In the context of circuit execution, pi/2 pulses are generally used in place of GPI2 gates. I would suggest having an interface where we can define optimized or preferred pulses pertaining to the common gates. For example, instead of halving the amplitude, I may prefer to halve the duration instead.