Quantum Rabi-Dynamics at extreme coupling strengths Our paper on Quantum Rabi-dynamics of trapped atoms far in the deep strong coupling regime published in Nat. Comm.

Our paper “Quantum Rabi dynamics of trapped atoms far in the deep strong coupling regime“ has been published in the journal Nature Communications. We report on a study of ultrastrong coupling between two mechanical modes of trapped cold atoms in the quantum Rabi regime. Using a novel experimental scheme, we achieve a Rabi coupling of 6.5 times the field mode frequency, so that the coupling term clearly dominates over all other energy scales for the first time.