Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 33: Matter Wave Interferometry I

Q 33.7: Talk

Wednesday, March 12, 2025, 12:30–12:45, HS I

Parallelized atom interferometers for inertial sensing — •Knut Stolzenberg, Christian Struckmann, Daida Thomas, Ashwin Rajagopalan, Alexander Herbst, Ernst M. Rasel, Naceur Gaaloul, and Dennis Schlippert — Leibniz University Hannover, Institute of Quantum Optics, Welfengarten 1, 30167 Hannover

Atom interferometers have become a viable tool for inertial sensing and fundamental research, showing excellent long-term stability and sensitivity. However, they are commonly bound to a single sensitive axis, enabling multi-axis inertial sensing only via post-correction with external classical sensors, or correlation with other simultaneous atom interferometers.
We show our results on measuring the Euler- and centrifugal acceleration, as well as transversal acting linear acceleration induced by gravity, utilizing a 3×3 array arrangement of Bose-Einstein condensates. The array has a spatial extent of 1.6 mm² and serves as input for Mach-Zehnder type atom interferometers, driven by double-Bragg diffraction. We call this method Parallelized Interferometers for XLerometry (PIXL) and discuss its prospects as a future quantum inertial measurement unit and in 3D-reconstruction of electro-magnetic fields.

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