Photon propagation in a gas of N atoms is studied using an effective Hamiltonian describing
photon-mediated atomic dipolar interactions. The density P (Γ) of photon escape rates is …

Absorption imaging with quasi-resonant laser light is a commonly used technique for
probing ultra-cold atomic gases in various geometries. In this paper, we investigate some …

We study numerically the spectrum of the non-Hermitian effective Hamiltonian that describes
the dipolar interaction of a gas of N≫ 1 atoms with the radiation field. We analyze the …

The quantum optical response of high-density ultracold atomic systems is important to a
wide range of fundamentally and technically important physical processes. We present here …

We develop a perturbative treatment of induced dipole-dipole interactions in the diffusive
transport of electromagnetic waves through disordered atomic clouds. The approach is exact …

We present here a microscopic analysis of the cooperative light scattering on an atomic
system consisting of Λ-type configured atoms with the spin-degenerate ground state. The …

We report measurements of near-resonance light scattering from an ultracold sample of R
87 b atoms formed in a magneto-optical trap (MOT). Time-dependent measurements of …

We study photon escape rates from two-dimensional atomic gases while taking into account
cooperative effects between the scatterers. Based on the spectrum of the random Euclidean …

We consider the Raman process developing in a disordered medium of alkali-metal atoms
when the scattered modes are trapped on a closed transition. Our theoretical analysis …

We numerically study photon escape rates from three-dimensional atomic gases and
investigate the respective roles of cooperative effects and disorder in photon localization …