  Radio-frequency measurements could satisfy DiVincenzo's readout criterion in
future large-scale solid-state quantum processors, as they allow for high
bandwidths and frequency multiplexing. However, the scalability potential of
this readout technique can only be leveraged if quantum device tuning is
performed using exclusively radio-frequency measurements i.e. without resorting
to current measurements. We demonstrate an algorithm that automatically tunes
double quantum dots using only radio-frequency reflectometry. Exploiting the
high bandwidth of radio-frequency measurements, the tuning was completed within
a few minutes without prior knowledge about the device architecture. Our
results show that it is possible to eliminate the need for transport
measurements for quantum dot tuning, paving the way for more scalable device
architectures.
