title: Cold bose gases with large scattering lengths.
abstract: We calculate the energy and condensate fraction for a dense system of bosons interacting through an attractive short range interaction with positive s-wave scattering length a. At high densities n>>a(-3), the energy per particle, chemical potential, and square of the sound speed are independent of the scattering length and proportional to n(2/3), as in Fermi systems. The condensate is quenched at densities na(3) approximately 1.
authors.affiliation: Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080, USA.
authors.forename: S
authors.initials: S
authors.lastname: Cowell
authors.forename: H
authors.initials: H
authors.lastname: Heiselberg
authors.forename: I E
authors.initials: IE
authors.lastname: Mazets
authors.forename: J
authors.initials: J
authors.lastname: Morales
authors.forename: V R
authors.initials: VR
authors.lastname: Pandharipande
authors.forename: C J
authors.initials: CJ
authors.lastname: Pethick