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A: Fachverband Atomphysik

A 42: Precision Measurements III (joint session Q/A)

A 42.4: Vortrag

Freitag, 15. März 2024, 15:15–15:30, HS 1221

Towards compact and field deployable quantum sensors for inertial navigation — •Ann Sabu¹, Polina Shelingovskaia¹, Yueyang Zou¹, Mouine Abidi¹, Philipp Barbey¹, Ashwin Rajagopalan¹, Christian Schubert², Matthias Gersemann¹, Dennis Schlippert¹, Ernst M. Rasel¹, and Sven Abend¹ — ¹Institut für Quantenoptik - Leibniz Universität, Welfgarten 1, 30167 Hannover — ²Deutsches Zentrum für Luft- und Raumfahrt

Quantum sensors using atom interferometry enable precise measurements of inertial forces with long-term stability. Highly sensitive and compact quantum sensors for field applications still pose a challenge.

In this talk, the progess of three experimental devices will be presented: a robust single-axis accelerometer for dynamic applications; a transportable multi-axis gyroscope; and a six-axis quantum sensor capable of measuring accelerations and rotations compatible for quantum navigation.

Telecom fiber laser systems are used for all the three devices. For the multi-axis gyroscope and the six-axis sensor, we exploit atom chip technology to create Bose-Einstein condensates for its low expansion rates. We also use a combination of twin-lattice and relaunch mechanisms to form multiple loops, providing a framework for both compact and large-area sensors along with large momentum transfer.

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+).

Keywords: Quantum navigation; Inertial sensing; Atom interferometry; Bose Einstein condensation