By map** the strong interaction between Rydberg excitations in ultra-cold atomic
ensembles onto single photons via electromagnetically induced transparency, it is now …

We report on the local control of the transition frequency of a spin 1/2 encoded in two
Rydberg levels of an individual atom by applying a state-selective light shift using an …

Coupling light to ensembles of strongly interacting particles has emerged as a promising
route toward achieving few photon nonlinearities. One specific way to implement this kind of …

We show that two photons coupled to Rydberg states via electromagnetically induced
transparency can interact via an effective Coulomb potential. This interaction gives rise to a …

We realize a coherent transfer between a laser-accessible low-angular-momentum Rydberg
state and the circular Rydberg level with maximal angular momentum. It is induced by a …

Rydberg blockade physics in optically dense atomic media under the conditions of
electromagnetically induced transparency (EIT) leads to strong dissipative interactions …

We develop an effective field theory (EFT) to describe the few-and many-body propagation
of one-dimensional Rydberg polaritons. We show that the photonic transmission through the …

The combination of electromagnetically induced transparency with the nonlinear interaction
between Rydberg atoms provides an effective interaction between photons. In this Letter, we …

Coupling light to Rydberg states of atoms under conditions of electromagnetically induced
transparency (EIT) leads to the formation of interacting quasiparticles, termed Rydberg …

Coupling photons to Rydberg excitations in a cold atomic gas yields unprecedentedly large
optical nonlinearities at the level of individual light quanta. Here, the basic mechanism …