Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster VI
Q 55.13: Poster
Donnerstag, 14. März 2024, 17:00–19:00, Tent B
PRIMUS - all-optical source of ultracold rubidium atoms for microgravity — •Marian Woltmann1, Jan Eric Stiehler1, Marius Prinz1, Sven Herrmann1, and The PRIMUS-Team1,2 — 1Center of Applied Space Technology and Microgravity (ZARM), University of Bremen, Germany — 2Institute of Quantum Optics, LU Hannover, Germany
Atom interferometers based on ultracold atoms have proven to be effective tools in measuring weakest forces. As their sensitivity scales with the squared interrogation time, the application of matter wave interferometers in microgravity offers the potential of highly increased sensitivities. While many cold-atom based microgravity-experiments use magnetic chip traps, the PRIMUS-project develops an all-optical trap as an alternative source of ultracold rubidium atoms in a drop tower experiment. Solely using optical potentials offers unique advantages, e.g. improved trap symmetry, trapping of all magnetic sub-levels and the accessibility of Feshbach resonances. We demonstrated rapid Bose-Einstein condensation of 87Rb in less than two seconds on ground while now focusing on the optimization for an efficient preparation in microgravity. The PRIMUS-project is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Climate Action under grant number DLR 50 WM 2042.
Keywords: BEC; all-optical; dipole trap; microgravity