Mainz 2017 – wissenschaftliches Programm
Q 31.33: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1+2
Atom-chip based BEC sources for compact and transportable experiments — •H. Heine1, J. Matthias1, N. Grove1, M. Sahelgozin1, A. Kassner2, M. Rechel2, S. Abend1, S. T. Seidel1, W. Herr1, M. C. Wurz2, J. Müller3, W. Ertmer1, and E. M. Rasel1 — 1IQ, Leibniz Universität Hannover — 2IMPT, Leibniz Universität Hannover — 3IfE, Leibniz Universität Hannover
Cold atom interferometers are starting to be used as inertial sensors in geodetic measurement campaigns competing with state-of-the-art classical sensors but are limited in accuracy by the residual thermal expansion of the atomic ensemble. Meanwhile, atom chips have been used to create Bose-Einstein condensates (BECs) with high repetition rates, providing a source of low expanding atomic ensembles ideal for compact and transportable precision experiments.
On this poster we will contrast our current atom-chip source with the features of the next generation atom chips targeting higher flux, compactification and simplification. The flux can be increased by utilizing non-adhesive conjunction techniques, leading to better vacuum quality and hence lowering background collision losses. With advanced electrical contacting of the chip and simplification in the optical setup, very compact and transportable systems can be realized.
This work is supported by the Deutsche Forschungsgemeinschaft (DFG) in the scope of the SFB 1128 geo-Q and by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under grant number DLR 50WM1650.