2016/10/05 by Rajeev Singh, Efrat Shimshoni
Physics and Astronomy · #Anderson localization #Cold Atom Physics and Bose-Einstein Condensates #Context (archaeology) #Mechanism (biology) #Quantum many-body systems #Simple (philosophy) #Topological Materials and Phenomena #Weak localization #cond-mat.stat-mech
paper · pdf · doi:10.1002/andp.201600309
8 pages, 4 figures
arxiv created 2016/10/05 · openalex created_date 2016/10/14 · openalex publication_date 2017/04/13 · arxiv updated 2017/08/02 · openalex updated_date 2026/08/05
Localization in interacting systems caused by disorder, known as many‐body localization (MBL), has attracted a lot of attention in recent years. Most systems studied in this context also show single‐particle localization, and the question of MBL is whether the phenomena survives the effects of interactions. It is intriguing to consider a system with no single‐particle localization but which does localize in the presence of many particles. The localization phenomena occurs “due to” rather than “in spite of” interactions in such systems. We consider a simple bosonic system and show that interactions enhance the effects of very weak disorder and result in localization when many particles are present. We provide physical insights into the mechanism involved and support our results with analytical and numerical calculations. image