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Q: Fachverband Quantenoptik und Photonik

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

Q 26.13: Poster

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

Realizing of multi-axis interial quantum sensor — •Xingrun Chen, Mouine Abidi, Philipp Barbey, Ashwin Rajagopalan, Ann Sabu, Matthias Gersemann, Ernst Rasel, and Sven Abend — Leibniz Universität Hannover, Institut für Quantenoptik,Germany

Atom interferometers utilizing Bose-Einstein condensates (BECs) as input state, produced by atom chips, have proven to exhibit exceptional capabilities in measuring rotations or accelerations, opening up the prospect of developing new quantum sensors to increase the sensitivity of inertial measurements. Integrating the three-axis quantum sensors with classical Inertial Measurement Units (IMUs), the emergence of hybrid quantum navigation presents a promising solution to mitigate drifts inherent in classical devices, irrespective of their limited band width and dynamic range. Collaborative efforts involve the exploration, of novel algorithms for the hybrid quantum sensor design, as well as the characterization of sensor dynamics and noise processes.

The quantum sensor initiative incorporates a specially designed fiber laser source operating at 1560nm, jointly with a commercial compact vacuum system. Furthermore, innovative optical configurations are em ployed to enhance the sensitivity of the quantum sensor. Ultimately, the finalized device is deployed on a gyro-stabilized platform.

Our current effort focuses on overcoming the main challenge of transitioning a sophisticated laboratory-based apparatus into a robust and compact unit for use in dynamic environments, such as reconstructing three-dimensional trajectories of GNSS.

Keywords: multi-axis; atom interferometer; BEC; bragg; atom chip