title: Phase separation in the two-dimensional bosonic Hubbard model with ring exchange.
authors.affiliation: Institut Non-Linéaire de Nice, Université de Nice-Sophia Antipolis, 1361 route des Lucioles, 06560 Valbonne, France.
authors.forename: V
authors.initials: V
authors.lastname: Rousseau
authors.forename: G G
authors.initials: GG
authors.lastname: Batrouni
authors.forename: R T
authors.initials: RT
authors.lastname: Scalettar