Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 69: Precision Measurements III (joint session Q/A)
Q 69.4: Talk
Friday, March 15, 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