title: Strong confinement and oscillations in two-component bose-einstein condensates
abstract: We present a new model of Bose-Einstein condensate dynamics based on strong confinement near the ground state. The model is based on a combined particle-wave view of the condensate and predicts oscillations in a two-component condensate, based on interference of nonspreading wave packets moving within a pair of tilted nearly square potentials. The oscillations are similar to those recently reported for a magnetically trapped 87Rb condensate, and the model's predictions give good quantitative agreement with the experiments.
authors.affiliation: Rochester Theory Center for Optical Science and Engineering and Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627-0171 and Department of Physics, Kyunghee University, Seoul, 130-701, Korea.
authors.initials: QH
authors.lastname: Park
authors.initials: JH
authors.lastname: Eberly