Collective Excitation of Rydberg-Atom Ensembles beyond the Superatom Model
Collective Excitation of Rydberg-Atom Ensembles beyond the Superatom Model
In an ensemble of laser-driven atoms involving strongly interacting Rydberg states, the steady-state excitation probability is usually substantially suppressed. In contrast, here we identify a regime in which the Rydberg excited fraction is enhanced by the interaction. This effect is associated with the buildup of many-body coherences induced by coherent …