Bonn 2025 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects

Q 26.12: Poster

Dienstag, 11. März 2025, 14:00–16:00, Tent

Multi-axis quantum gyroscope with multi loop atomic Sagnac interferometry — •Ann Sabu, Polina Shelingovskaia, Mouine Abidi, Philipp Barbey, Ashwin Rajagopalan, Xingrun Chen, Matthias Gersemann, Dennis Schlippert, Ernst M. Rasel, and Sven Abend — Institut für Quantenoptik - Leibniz Universität, Welfgarten 1, 30167 Hannover

Twin-lattice atom interferometry enables precise and highly sensitive rotation measurements through large-area Sagnac interferometry. Our goal is to develop a compact and transportable gyroscope capable of multi-axis inertial sensing. In the future, this gyroscope shall reach unprecedented Sagnac areas on the order of 100 cm² by employing multi-loop interferometry[1].

The multi-loop interferometer with extended free fall time will employ large momentum transfer utilizing Bose-Einstein condensates (BECs) of ⁸⁷Rb atoms. The system design, including the laser system for cooling and manipulation of the atomic ensemble is presented.

We acknowledge financial support by the DFG EXC2123 QuantumFrontiers - 390837967 and by the DLR with funds provided by BMWK under Grant No. DLR 50NA2106 (QGyro+).

[1]Schubert, C., Abend, S., Gersemann, M. et al. Multi-loop atomic Sagnac interferometry. Sci Rep 11, 16121 (2021). https://doi.org/10.1038/s41598-021-95334-7

Keywords: Atom interferometry; Bose-Einstein condensation; Gyroscope; Rotation sensing; Quantum sensing