Heidelberg 2015 – wissenschaftliches Programm
Q 32.30: Poster
Dienstag, 24. März 2015, 17:00–19:00, C/Foyer
Interference of ultracold Bose gases — •Holger Hauptmann, Sigmund Heller, and Walter T. Strunz — Technische Universität Dresden
We study equilibrium and dynamical aspects of ultracold quasi one-dimensional Bose gases with repulsive self interaction. To describe Bose gases in the canonical ensemble (fixed particle number) a nonlinear stochastic matter-field equation will be presented. Applications of this equation to interference experiments from the Schmiedmayer group  will be shown. Moreover to study dynamical properties, it is necessary to create two correlated quasi one-dimensional cigar-shaped Bose gases. We present a stochastic splitting mechanism which simulates the tearing of one quasi one-dimensional cigar-shaped gas along the logitudinal axis into two Bose gases. Applications to dynamical interference experiments  exhibit good agreement.