Darmstadt 2008 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 47: Quantengase (Bosonen II / Fermionen)

Q 47.3: Vortrag

Donnerstag, 13. März 2008, 17:00–17:15, 1A

Dropping Bose-Einstein condensates over long times and large distances — •Endre Kajari, Stefan Arnold, Michael Eckart, Reinhold Walser, and Wolfgang P. Schleich for the QUANTUS collaboration — Institute of Quantum Physics, Universität Ulm, D-89069 Ulm

Ultracold quantum gases have the potential to extend the limits of matter-wave interferometry beyond current precision standards. In particular, the QUANTUS project [1] aims for the creation of a Bose-Einstein condensate at the drop tower facility at the ”Center of Applied Space Technology and Microgravity” (ZARM) in Bremen. Such an experiment permits an unperturbed free fall of a condensate for up to 10 s. In this talk we present our theoretical contributions [2] and provide three-dimensional numerical simulations of the time dependent Gross-Pitaevskii equation, including explicit time dependent trapping frequencies. Our results are compared with the scaling approach given in [3,4].
A. Vogel et al., Appl. Phys. B 84, 664 (2006).
G. Nandi et al., Phys. Rev. A (to be published 2007).
Yu. Kagan et al., Phys. Rev. A. 54, R1753 (1996).
Y. Castin and R. Dum, Phys. Rev. Lett. 77, 5315 (1996).