Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster 3: Quantengase, Ultrakalte Atome, Ultrakalte Moleküle, Materiewellen Optik, Präzisionsmessungen, Metrologie
Q 57.59: Poster
Donnerstag, 17. März 2011, 16:30–19:30, P1
Towards sequential BEC production with high repetition rates on a mesoscopic wire structure — Stefan Jöllenbeck1, •Jan Mahnke1, Richard Randoll1, Manuela Hanke1, Ilka Geisel1, Wolfgang Ertmer1, Jan Arlt2, and Carsten Klempt1 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Department of Physics and Astronomy, Aarhus University
The sensitivity of atom interferometers could be increased by using quantum degenerate input states. To gain the advantage of a higher resolution would require a source providing sufficiently large ensembles as well as high repetition rates. While conventional BEC experiments do not reach the required repetition rates, microscopic atom chips may enhance cooling rates. However, atom chips typically capture significantly smaller ensembles. Our aim is to combine the advantages of both types of experiments by using a mesoscopic wire structure to provide the magnetic fields for magneto-optical and magnetic trapping.
Fast sequential BEC production will be achieved by consecutive loading of magneto-optical traps. The captured atoms are subsequently transferred to a shielded vacuum region on a magnetic conveyor belt. By parallel evaporation of several clouds during the transport, high BEC repetition rates of more than 2 Hz will be achievable.
We present our latest results of loading and transporting atoms in our magnetic conveyor belt.