2021/01/30 by Nicolas Cherroret, Thibault Scoquart, Dominique Delande
Physics and Astronomy · #Characterization (materials science) #Cold Atom Physics and Bose-Einstein Condensates #Context (archaeology) #Dephasing #Mesoscopic physics #Quantum chaos and dynamical systems #Random lasers and scattering media #Scattering #Thermalisation #Weak localization #cond-mat.dis-nn #cond-mat.quant-gas
paper · pdf · doi:10.1016/j.aop.2021.168543
published as Annals of Physics, 2021, 168543
arxiv created 2021/01/30 · openalex created_date 2021/02/15 · openalex publication_date 2021/06/05 · arxiv updated 2021/06/22 · openalex updated_date 2026/08/06
We review recent theoretical and experimental progresses in the coherent multiple scattering of weakly interacting disordered Bose gases. These systems have allowed, in the recent years, a characterization of weak and strong localization phenomena in disorder at an unprecedented level of control. In this paper, we first discuss the main physical concepts and recent experimental achievements associated with a few emblematic "mesoscopic" effects in disorder like coherent back scattering, coherent forward scattering or mesoscopic echos, focusing on the context of out-of-equilibrium cold-atom setups. We then address the role of weak particle interactions and explain how, depending on their relative strength with respect to the disorder and on the time scales probed, they can give rise to a dephasing mechanism for weak localization, thermalize a non-equilibrium Bose gas or make it become a superfluid.