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 …

In recent years, electric field measurement techniques based on Rydberg atoms have
shown unique advantages in high sensitivity and wideband applications and miniaturization …

We have observed the ionization of a cold gas of Rb Rydberg atoms which occurs when
nsns van der Waals pairs of ns atoms of n≈ 40 on a weakly repulsive potential are …

The behaviour of interacting ultracold Rydberg atoms in both constant electric fields and
laser fields is important for designing experiments and constructing realistic models of them …

We consider nonadiabatic transitions in explicitly time-dependent systems with Hamiltonians
of the form H ̂ (t)= A ̂+ B ̂ t+ C ̂/t, where t is time and A ̂, B ̂, C ̂ are Hermitian N× N …

We derive an exact solution of an explicitly time-dependent multichannel model of quantum
mechanical nonadiabatic transitions. In the limit N≫ 1, where N is the number of states, we …

The collisional loss rates of 63 S 1/2 Rydberg atoms in cesium magneto-optical trap are
measured by using the state-selective pulse field ionization technique and used to …

In this work, we investigate the dc electric-field dependence of two Förster resonant
processes in ultracold Rb 85, 37 D 5/2+ 37 D 5/2→ 35 L (L= O, Q)+ 39 P 3/2, as a function of …

We present a simple analytical formula derived from an existing theoretical model and a
detailed theoretical investigation of effects of the van der Waals interaction and dipole …

We calculate pair potential curves for interacting Rydberg atoms in a constant electric field
and use them to determine the effective C 3 dipole–dipole and C 6 van der Waals …