Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Poster: Quantum Optics and Photonics II
Q 27.46: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
MAIUS-II/III: Towards dual species atom interferometry with Bose-Einstein condensates in space — •Baptist Piest1, Maike Lachmann1, Dennis Becker1, Merle Cornelius1, Michael Elsen2, and Ernst Rasel1 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2ZARM, Universität Bremen
One of the underlying principles of general relativity is the Einstein equivalence principle. It can directly be probed by measuring the free fall acceleration of any two test objects with different internal composition and masses. Precise quantum measurements can be achieved by simultaneous atom interferometry of a mixed species Bose-Einstein condensate (BEC). To increase the precision of such an experiment the enclosed space-time path of the interferometry sequence has to be maximized which demands a weightless environment. Within the QUANTUS-experiments, we already demonstrated the creation of BECs in microgravity[1] and the realisation of a BEC based atom interferometer in microgravity[2]. Primary goals of the sounding rocket mission MAIUS-II are the first sequential creation of BECs consisting of Rb-87 and K-41 in space and the realisation of a double-diffraction type atom interferometer. In MAIUS-III this shall be extended to the simultaneous creation of the dual species BEC. One of the next steps towards the mission will be the commissioning of the experimental chamber on ground with a dedicated laser system to demonstrate its capability to create and observe BECs of Rb-87 and K-41.
[1] T. van Zoest et al., Science 328, 1540 (2010).
[2] H. Müntinga et al., Phys. Rev. Lett. 110, 093602 (2013).