Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 35: Poster I
Q 35.69: Poster
Dienstag, 19. März 2013, 16:00–18:30, Empore Lichthof
Atom interferometry with Bose-Einstein condensates in microgravity — •André Wenzlawski1, Patrick Windpassinger1, Klaus Sengstock1, and the Quantus team1,2,3,4,5,6,7,8,9 — 1Institut für Laser-Physik, Universität Hamburg — 2Institut für Quantenoptik, Universität Hannover — 3Institut für Physik, HU Berlin — 4ZARM, Universität Bremen — 5Institut für angewandte Physik, TU Darmstadt — 6Institut für Quantenphysik, Universität Ulm — 7MUARC, University of Birmingham, UK — 8FBH, Berlin — 9MPQ, Garching
Atom interferometers have emerged as a standard tool for highly precise inertial measurements. The achievable precision strongly depends on the interrogation time which is why a BEC with its narrow momentum distribution serves as an ideal source for these type of sensors.
Since the first realization of a Bose-Einstein condensate in microgravity in the Bremen drop tower [1] we were able to observe the free expansion of ultra-cold atoms for up to 2s, which allows for the realization of matter wave interferometers of unprecedented sensitivities.
Furhtermore we could demostrate a matter wave interferometer based on stimulated Bragg scattering with which we will show the feasibility of bringing BEC-based atom interferometry into microgravity.
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 50WM1131-1137.
T. van Zoest et al., Science 328, 1540 (2010).