Freiburg 2024 – scientific programme

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A: Fachverband Atomphysik

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

A 42.2: Talk

Friday, March 15, 2024, 14:45–15:00, HS 1221

Inertial sensing deploying painted optical potentials — •Knut Stolzenberg, Sebastian Bode, Christian Struckmann, Alexander Herbst, Daida Thomas, Naceur Gaaloul, Ernst Rasel, and Dennis Schlippert — Leibniz Universität Hannover, Institut für Quantenoptik

Inertial sensors based on atom interferometers can become a viable addition to classical IMUs, e.g., for autonomous driving or aviation in GNSS-denied environments. While they are superior with respect to their accuracy and long-term stability, it remains challenging to simultaneously measure accelerations and rotations in one or more axes in present experiments. In our experiment a 1064 nm crossed optical dipole trap (ODT) is used for creation of quantum-degenerate ensembles. By using acousto-optical deflectors in both ODT beam paths, we add versatile control over the trapping potentials with respect to position and trap depth. This allows for the creation of BECs amounting to a total number of up to 300 × 10³ ultracold ⁸⁷Rb atoms prepared in the magnetically insensitive state F=1, m_F = 0 . We report on prospects of implementing guided quantum inertial sensors by light-pulsed atom interferometry in waveguides and by atomtronics in painted potentials.

Keywords: Atom Interferometry; Inertial sensing; Navigation; Multi-axis sensing; Gyroscope