title: Finite-temperature fluid-insulator transition of strongly interacting 1D disordered bosons.
abstract: We consider the many-body localization-delocalization transition for strongly interacting one-dimensional disordered bosons and construct the full picture of finite temperature behavior of this system. This picture shows two insulator-fluid transitions at any finite temperature when varying the interaction strength. At weak interactions, an increase in the interaction strength leads to insulator [Formula: see text] fluid transition, and, for large interactions, there is a reentrance to the insulator regime. It is feasible to experimentally verify these predictions by tuning the interaction strength with the use of Feshbach or confinement-induced resonances, for example, in (7)Li or (39)K.
authors.affiliation: Laboratoire de Physique Théorique et Modèles Statistiques, CNRS, Université Paris-Sud and Université Paris-Saclay, 91405 Orsay, France;
authors.forename: Vincent P
authors.initials: VP
authors.lastname: Michal
authors.affiliation: Physics Department, Columbia University, New York, NY 10027;
authors.forename: Igor L
authors.initials: IL
authors.lastname: Aleiner
authors.affiliation: Physics Department, Columbia University, New York, NY 10027; Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; bla@phys.columbia.edu.
authors.forename: Boris L
authors.initials: BL
authors.lastname: Altshuler
authors.affiliation: Laboratoire de Physique Théorique et Modèles Statistiques, CNRS, Université Paris-Sud and Université Paris-Saclay, 91405 Orsay, France; Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; Van der Waals-Zeeman Institute, University of Amsterdam, 1098 XH Amsterdam, The Netherlands; Russian Quantum Center, Moscow Region 143025, Russia.
authors.forename: Georgy V
authors.initials: GV
authors.lastname: Shlyapnikov
keywords: disordered bosons; many-body localization; ultracold atomic gases