Microscopic Theory of Scattering of Weak Electromagnetic Radiation by a Dense Ensemble of Ultracold Atoms

Abstract

Based on the developed quantum microscopic theory, the interaction of weak electromagnetic radiation with dense ultracold atomic clouds is described in detail. The differential and total cooperative scattering cross sections are calculated for monochromatic radiation as particular examples of application of the general theory. The angular, spectral, and polarization properties of scattered light are determined. The dependence of these quantities on the sample size and concentration of atoms is studied and the influence of collective effects is analyzed.

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• Spatial distribution of optically induced atomic excitation in a dense and cold atomic ensemble
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• Cooperative optical wavefront engineering with atomic arrays
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• Coherent light propagation through cold atomic clouds beyond the independent scattering approximation
• Search for Anderson localization of light by cold atoms in a static electric field
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• Subradiance in dilute atomic ensembles: Role of pairs and multiple scattering
• Incomplete spontaneous decay in a waveguide caused by polarization selection
• Comparison of three approaches to light scattering by dilute cold atomic ensembles
• Finite-size scaling of the density of states inside band gaps of ideal and disordered photonic crystals
• Optical magnetism and wavefront control by arrays of strontium atoms
• Optical-depth scaling of light scattering from a dense and cold atomic ${}^{87}$Rb gas
• Influence of atomic motion on the collective effects in dense and cold atomic ensembles
• Many-body cooperative effects in an ensemble of point-like impurity centers near a charged conductive surface
• Radiative toroidal dipole and anapole excitations in collectively responding arrays of atoms
• Light propagation in a random three-dimensional ensemble of point scatterers in a waveguide: size-dependent switching between diffuse radiation transfer and Anderson localization of light
• Spontaneous symmetry breaking in frustrated triangular atom arrays due to cooperative light scattering
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• Atomic-motion-induced spectroscopic effects nonlinear in atomic density in a gas
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• Single particle model of a strongly driven, dense, nanoscale quantum ensemble
• Propagation of light in cold emitter ensembles with quantum position correlations due to static long-range dipolar interactions
• Cooperative spontaneous decay of local excitation in a dense and disordered ensemble of point-like impurity atoms near a charged conductive surface
• Quantifying the breakdown of the rotating-wave approximation in single-photon superradiance