Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

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

Q 26.29: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Scalable Multi-Loop Cold Atom Rotation Sensor — •Sandra Rühmann, Holger Ahlers, Christian Deppner, Waldemar Herr, and Christian Schubert — Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Inertialsensorik, Hannover

Matter-wave interferometry with cold atoms offers a competitive tool for absolute measurements of acceleration and rotation. The sensitivity of atom-interferometric gyroscopes depends on the area enclosed by the interferometer. In this contribution, we present a concept for a rotation sensor, utilizing a multi-loop interferometer geometry to achieve a scalable area while maintaining a compact setup. It enables rotation measurements of a single axis on ground and can be extended to measure rotations along all three spatial axes in microgravity, for potential applications in space missions, Earth observation, and navigation systems.

Keywords: Atom interferometry; Inertial sensing; Gyroscope