This topical review addresses how Rydberg atoms can serve as building blocks for
emerging quantum technologies. Whereas the fabrication of large numbers of artificial …

Atom-based measurements of length, time, gravity, inertial forces and electromagnetic fields
are receiving increasing attention. Atoms possess properties that suggest clear advantages …

We review experimental and theoretical tools to excite, study and understand strongly
interacting Rydberg gases. The focus lies on the excitation of dense ultracold atomic …

Ultracold molecules formed from association of a single Rydberg atom with surrounding
atoms or molecules and those from double Rydberg excitations are discussed in this review …

We measure the angular dependence of the resonant dipole-dipole interaction between two
individual Rydberg atoms with controlled relative positions. By applying a combination of …

We present evidence for Rydberg-Rydberg interaction in a gas of rubidium atoms above
room temperature. Rabi oscillations on the nanosecond time scale to different Rydberg …

Controlling molecular binding at the level of single atoms is one of the holy grails of quantum
chemistry. Rydberg macrodimers─ bound states between highly excited Rydberg atoms─ …

We consider the excitation of Rydberg states through photons carrying an intrinsic orbital
angular momentum degree of freedom. Laguerre–Gauss modes, with a helical wave-front …

Förster resonances provide a highly flexible tool to tune both the strength and the angular
shape of interactions between two Rydberg atoms. We give a detailed explanation about …

In this chapter, we present a review of Rydberg atom interactions. The review focusses on
the importance of these interactions in ultracold Rydberg atom physics. We address how …