Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 56: Poster VII
Q 56.19: Poster
Donnerstag, 14. März 2024, 17:00–19:00, KG I Foyer
Three-dimensional absorption detection system in the transportable Quantum Gravimeter QG-1 — •Najwa Sophie Al-Zaki1, Pablo Nuñez von Voigt1, Nina Heine1, 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 transportable Quantum Gravimeter QG-1 is designed to determine local gravity to the low nm/s2 level of uncertainty. The installation of two additional absorption detection systems allows the extension of the interferometer separation time 2T. The consecutive detection of the atomic ensemble in two directions enables reconstruction of their three-dimensional position and size, offering new tools for investigating limiting sources of error. This work focuses on estimating the uncertainty of the bias acceleration due to the Coriolis effect by analyzing the reconstructed three-dimensional trajectory.
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; Absorption Detection