  Driving a quantum system at finite frequency allows one to explore its
dynamics. This has become a well mastered resource for controlling the quantum
state of two level systems in the context of quantum information processing.
However, this can also be of fundamental interest, especially with many-body
systems which display an intricate finite frequency behavior. In condensed
matter, the Kondo effect epitomizes strong electronic correlations, but the
study of its dynamics and the related scaling laws has remained elusive so far.
Here, we fill this gap by studying a carbon nanotube based Kondo quantum dot
driven by a microwave signal. Our findings not only confirm long-standing
theoretical predictions, but also allow us to establish a simple ansatz for the
scaling laws on the Kondo problem at finite frequency. More generally, our
technique opens a new path for understanding the dynamics of complex quantum
dot circuits in the context of quantum simulation of strongly correlated
electron fluids.
