Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 34: Poster 1

Q 34.70: Poster

Dienstag, 13. März 2012, 16:30–19:00, Poster.I+II

Mach-Zehnder type interferometry with Bose-Einstein condensates in microgravity — •Markus Krutzik1, Achim Peters1, and the QUANTUS Team1,2,3,4,5,6,7,8,91Institut für Physik, HU Berlin — 2Institut für Quantenoptik, LU Hannover — 3Institut für Laserphysik, Uni Hamburg — 4ZARM, Uni Bremen — 5Institut für Quantenphysik, Uni Ulm — 6MPQ, Garching — 7Institut für angewandte Physik, TU Darmstadt — 8Midlands Ultracold Atom Research Centre, University of Birmingham, UK — 9FBH, Berlin

Inertial sensors based on interferometry with ultra cold matter waves are proven to be a very promising tool for fundamental physics missions in space, as for instance testing the Einstein equivalence principle. The successful observation of Bose-Einstein condensation in microgravity (van Zoest et al., Science 328 2010) was an important result towards realizing coherent sources for atom interferometry under extreme conditions. We have now implemented a matter wave interferometer based on the coherent manipulation of the BEC with stimulated Bragg diffraction as a splitting and recombination process. In recent drop campaigns we have analyzed long-time coherence properties of the macroscopically separated wave packets in a Mach-Zehnder configuration. In this poster we present our experimental apparatus in detail and summarize latest results.

The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR 50WM 1131-1137.

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