SAMOP 2021 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 13: Quantum Gases and Matter Waves (joint session Q/A)
A 13.7: Poster
Dienstag, 21. September 2021, 16:30–18:30, P
Multi-axis and high precision rotation sensing with Bose-Einstein condensates — •Sven Abend1, Christian Schubert1,2, Matthias Gersemann1, Martina Gebbe3, Dennis Schlippert1, and Ernst M. Rasel1 — 1Leibniz Universität Hannover, Institut für Quantenoptik — 2Deutsches Zentrum für Luft- und Raumfahrt e.V., Institut für Satellitengeodäsie und Inertialsensorik — 3ZARM, Universität Bremen
Atom interferometers are versatile tools to measure inertial forces and were utilised as accurate gravimeters. Exploiting the Sagnac effect by enclosing an area with matterwaves enables rotation measurements. We present a concept for a multi-loop atom interferometer with a scalable area formed by light pulses, making use of twin-lattice atom interferometry.
Addionally, we create two simultaneous atom interferometers out of a single Bose-Einstein condensate (BEC), to differntiate between rotations and accelerations. Our method exploits the precise motion control of BECs combined with the precise momentum transfer by double Bragg diffraction for interferometry. Consequently, the scheme avoids the complexity of two BEC sources. We show our experimental results and discuss the extension to a six-axis quantum inertial measurement unit.
This work is supported by the Ministry for Economic Affairs and Energy (BMWi) due to the enactment of the German Bundestag under Grand No. DLR 50RK1957 (QGyro).