title: Bose-Fermi variational theory of the Bose-Einstein condensate crossover to the Tonks gas.
abstract: A number-conserving hybrid Bose-Fermi variational theory is developed and applied to investigation of the Bose-Einstein condensate crossover to the Tonks gas in toroidal and long cylindrical traps of high aspect ratio, where strong many-body correlations and condensate depletion occur.
authors.affiliation: Optical Sciences Center and Department of Physics, University of Arizona, Tucson, Arizona 85721, USA.
authors.forename: M D
authors.initials: MD
authors.lastname: Girardeau
authors.forename: E M
authors.initials: EM
authors.lastname: Wright