Strong Anderson localization in cold atom quantum quenches
Quantum Gases
2015-06-17 v2 Disordered Systems and Neural Networks
Abstract
Signatures of strong Anderson localization in the momentum distribution of a cold atom cloud after a quantum quench are studied. We consider a quasi one-dimensional cloud initially prepared in a well defined momentum state, and expanding for some time in a disorder speckle potential. Anderson localization leads to a formation of a coherence peak in the \emph{forward} scattering direction (as opposed to the common weak localization backscattering peak). We present a microscopic, and fully time resolved description of the phenomenon, covering the entire diffusion--to--localization crossover. Our results should be observable by present day technology.
Keywords
Cite
@article{arxiv.1311.2268,
title = {Strong Anderson localization in cold atom quantum quenches},
author = {T. Micklitz and C. A. Müller and A. Altland},
journal= {arXiv preprint arXiv:1311.2268},
year = {2015}
}
Comments
4 pages, 2 figures, published version