2006/09/29 by T. Schulte, Thomas Schulte, S. Drenkelforth +11
Physics and Astronomy · #Anderson localization #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Degenerate energy levels #Lattice (music) #Physics #Quantum #Quantum many-body systems #Quantum mechanics #Quantum, superfluid, helium dynamics #Quasiperiodic function #Statistical physics #Superfluidity #Superlattice #cond-mat.dis-nn
paper · pdf · doi:10.1088/1367-2630/8/10/230
9 pages, 13 figures
arxiv created 2006/09/29 · openalex publication_date 2006/10/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
Disorder plays a crucial role in many systems particularly in solid state physics. However, the disorder in a particular system cannot usually be chosen or controlled. We show that the unique control available for ultracold atomic gases may be used for the production and observation of disordered quantum degenerate gases. A detailed analysis of localization effects for two possible realizations of a disordered potential is presented. In a theoretical analysis, clear localization effects are observed when a superlattice is used to provide a quasiperiodic disorder. The effects of localization are analysed by investigating the superfluid fraction and the localization length within the system. The theoretical analysis in this paper paves a clear path for the future observation of Anderson-like localization in disordered quantum gases.