Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.37: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
Operating a mobile Gravimetric Atom Interferometer GAIN at the fundamental station Wettzell — •Anne Stiekel1, Bastian Leykauf1, Vladimir Schkolnik1, Christian Freier1, Hartmut Wziontek2, Axel Rülke2, Markus Krutzik1, and Achim Peters1 — 1Institut für Physik, Humboldt-Universität zu Berlin, Germany — 2Bundesamt für Karthographie und Geodäsie
GAIN is an atomic interferometer based on rubidium and stimulated Raman transitions used to measure the gravitational acceleration. Its transportability makes it possible to measure at sites of geodetic and geophysical interest.
In cooperation with the German Federal Agency for Cartography and Geodesy (Bundesamt für Karthographie und Geodäsie, BKG) a measurement campaign was conducted at the geodetic observatory in Wettzell to show the performance of quantum gravity sensor.
We will show the experimental apparatus and the operation with a focus on beam alignment. New procedures were tested to adjust the setup and thus optimize the measurement.
A long-term gravity measurement was recorded and compared with a superconducting gravimeter. We will discuss the Coriolis effect and a strategy to suppress the resulting phase shift. Another objective was to analyse the effect of an active and passive vibration isolation as well as the efficiency of a post-correction.