Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 42: Precision Measurements III (joint session Q/A)
A 42.1: Vortrag
Freitag, 15. März 2024, 14:30–14:45, HS 1221
Coriolis bias estimation in the transportable Quantum Gravimeter QG-1 — •Pablo Nuñez von Voigt1, Nina Heine1, Najwa Al-Zaki1, Waldemar Herr2, Christian Schubert2, Ludger Timmen3, Jürgen Müller3, and Ernst M. Rasel1 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Hannover, Germany — 2Deutsches Zentrum für Luft und Raumfahrt, Institut für Satellitengeodäsie und Inertialsensorik, Hannover, Germany — 3Leibniz Universität Hannover, Institut für Erdmessung, Hannover, Germany
The Quantum Gravimeter QG-1 relies on the interferometric interrogation of magnetically collimated Bose-Einstein condensates (BEC) in a transportable setup. The falling BEC is detected via absorption imaging, allowing a better characterization of uncertainties of the motional degrees of freedom than fluorescence detection. The horizontal velocity component is utilized to estimate the uncertainty in the bias acceleration due to the Coriolis effect. Estimations from a gradiometer measurement are presented together with proposed measures to compensate for the Coriolis effect.
We acknowledge financial funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 434617780 - SFB 1464 and under Germany’s Excellence Strategy - EXC 2123 QuantumFrontiers, Project-ID 390837967.
Keywords: Gravimetry; Atom Interferometry; BEC