Superradiance, mesoscopic fluctuations and localization in cold atomic gases

Eric Akermmans

Department of Physics , Technion

We discuss three issues related to Anderson localization (either weak or strong) of photons or matter waves in cold atomic gases. The first issue deals with the interplay of superradiance (more generally cooperative effects) and coherent multiple scattering and its implication on the universality of the localization transition. Then, we shall discuss the enhancement induced by disorder on photon correlations in the weak localization regime and its implication for atomic spectroscopy. Finally, we shall move to the problem of one-dimensional localization of matter waves and the effect of nonlinearities.