When ensembles of atoms interact with coherent light fields, a great many interesting and
useful effects can be observed. In particular, the group velocity of the coherent fields can be …

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 …

We report on an observation of stationary light pulses and narrowband light storage inside a
hollow-core photonic crystal fiber. Laser-cooled atoms were first loaded into the fiber core …

We report an experimental demonstration of the nonclassical stationary light pulse (SLP) in
a cold atomic ensemble. A single collective atomic excitation is created and heralded by …

The precise control of atom–light interactions is vital to many quantum technologies. For
instance, atomic systems can be used to slow and store light, acting as a quantum memory …

We investigate the dispersion relations for light coupled to one-dimensional ensembles of
atoms with different level schemes. The unifying feature of all the considered setups is that …

Rydberg-state excitation of stretched model molecules subjected to near-infrared intense
laser fields has been investigated based on a fully quantum model (QM) proposed recently …

We report on systematic numerical and experimental investigations of electromagnetically
induced transparency (EIT) to determine temperatures in an ultracold atomic gas. The …

We present a theoretical study of the Doppler broadened Y-type six-level atomic system,
using a density matrix approach, to investigate the effect of varying control field wavelengths …

We have studied stationary and quasistationary signal light pulses in cold Λ-type atomic
media driven by counterpropagating control laser fields at the condition of …