Rydberg states in cold atoms

Our quantum system is made up of a set of atoms in Rydberg states in a cloud that have been cooled to a temperature close to absolute zero (a few tens of micro-Kelvin). To create this cloud we built a magento-optical trap or MOT (Magneto-Optical Trap), a system that is currently in common use in many Atomic Physics laboratories. In turn, this cloud of cold atoms that is created inside a high vacuum chamber is manipulated using an optical tweezer, which allows us to spatially move and position our atoms in the vicinity of a resonator.

The states we consider are particularly susceptible to microwave fields, in the range of tens of GHz.