title: Phase transition of interacting disordered bosons in one dimension.
abstract: Interacting bosons generically form a superfluid state. In the presence of disorder it can get converted into a compressible Bose glass state. Here we study such a transition in one dimension at moderate interaction using bosonization and renormalization group techniques. We derive the two-loop scaling equations and discuss the phase diagram. We find that the correlation functions at the transition are characterized by universal exponents in a finite region around the fixed point.
authors.affiliation: Laboratoire de Physique Théorique-CNRS, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France.
authors.forename: Zoran
authors.initials: Z
authors.lastname: Ristivojevic
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Petković
authors.forename: Pierre
authors.initials: P
authors.lastname: Le Doussal
authors.forename: Thierry
authors.initials: T
authors.lastname: Giamarchi