Light scattering and localization in an ultracold and dense atomic   system
  The quantum optical response of high density ultracold atomic systems is critical to a wide range of fundamentally and technically important physical processes. These include quantum image storage, optically based quantum repeaters and ultracold molecule formation. We present here a microscopic analysis of the light scattering on such a system, and we compare it with a corresponding description based on macroscopic Maxwell theory. Results are discussed in the context of the spectral resonance structure, time-dependent response, and the light localization problem. 
I.M. Sokolov, M.D. Kupriyanova, D.V. Kupriyanov, M.D. Havey