  We investigate a hybrid electro-mechanical system consisting of a pair of
charged macroscopic mechanical oscillators coupled to a small ensemble of
Rydberg atoms. The resonant dipole-dipole coupling between an internal atomic
Rydberg transition and the mechanics allows cooling to its motional ground
state with a single atom despite the considerable mass imbalance between the
two subsystems. We show that the rich electronic spectrum of Rydberg atoms,
combined with their high degree of optical control, paves the way towards
implementing various quantum-control protocol for the mechanical oscillators.
