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Q: Fachverband Quantenoptik und Photonik
Q 63: Matter Wave Optics
Q 63.7: Talk
Friday, March 18, 2022, 12:00–12:15, Q-H10
Double Bragg atom interferometry with BECs in microgravity — •Julia Pahl1, Merle Cornelius2, Peter Stromberger3, Laura Pätzold2, Waldemar Herr4,5, Sven Herrmann3, Patrick Windpassinger3, Christian Schubert5, Ernst M. Rasel4, Markus Krutzik1,6, and The QUANTUS Team1,2,3,4,7,8 — 1HU Berlin — 2U Bremen — 3JGU Mainz — 4LU Hannover — 5DLR-SI — 6FBH Berlin — 7U Ulm — 8TU Darmstadt
QUANTUS-2 is a high-flux Bose-Einstein condensate (BEC) experiment operating in microgravity at the ZARM drop tower in Bremen.
Its functionality is extended with a rubidium atom interferometry setup based on double Bragg diffraction.
We present our latest results on the performance of open interferometer archtictures (Ramsey-type and Mach-Zehnder) in free fall.
In combination with a magnetic lens, we are able to enhance the atomic signal on longer time scales.
By studying the resulting fringe pattern, we can further spatially resolve the velocity distribution of the ensembles.
This project is supported by the German Space Agency
DLR with funds provided by the Federal Ministry for Economic Affairs and Energy under grant number DLR 50WM1952-1957.