%0 Journal Article
%T Delocalization of weakly interacting bosons in a 1D quasiperiodic potential
%A V. P. Michal
%A B. L. Altshuler
%A G. V. Shlyapnikov
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevLett.113.045304
%X We consider weakly interacting bosons in a 1D quasiperiodic potential (Aubry-Azbel-Harper model) in the regime where all single-particle states are localized. We show that the interparticle interaction may lead to the many-body delocalization and we obtain the finite-temperature phase diagram. Counterintuitively, in a wide range of parameters the delocalization requires stronger cou- pling as the temperature increases. This means that the system of bosons can undergo a transition from a fluid to insulator (glass) state under heating.
%U http://arxiv.org/abs/1402.4796v2