title: Integer quantum Hall effect for bosons.
abstract: A simple physical realization of an integer quantum Hall state of interacting two dimensional bosons is provided. This is an example of a symmetry-protected topological (SPT) phase which is a generalization of the concept of topological insulators to systems of interacting bosons or fermions. Universal physical properties of the boson integer quantum Hall state are described and shown to correspond with those expected from general classifications of SPT phases.
authors.affiliation: Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: T
authors.initials: T
authors.lastname: Senthil
authors.affiliation: Department of Physics, Condensed Matter Theory Center, University of Maryland, College Park, Maryland 20742, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Levin