Article
Extended Data Fig. 9 | Phase corrections on the qubits. a, Extended Ramsey
experiment on each of the four resonance line, using five different test gates
between the π/2 pulses to observe the effect on the resonance frequency.
A linear phase shift as a function of test gate pulse length τ can be observed for
some lines, indicating a frequency shift during the pulsing. b, We compensate
for this effect by performing a software update of δφ = δντ to each additional
pulse, with δν the frequency shift of the qubit as a result of the microwave
signal.