Spectrum of coherently backscattered light from two atoms
arXiv:0801.0119 · doi:10.1103/PhysRevA.76.043832
Abstract
We present a detailed analytical and numerical analysis of the inelastic coherent backscattering spectrum of laser light incident on cold atoms. We identify frequency domains where the interference contribution can be positive \emph{as well as} negative -- or exhibits dispersive character. These distinctive features are explained by reciprocity arguments and dressed state two-photon scattering amplitudes.
14 pages, 9 figures