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Q: Fachverband Quantenoptik und Photonik
Q 3: Precision Measurements and Metrology I
Q 3.3: Vortrag
Montag, 14. März 2022, 14:30–14:45, Q-H11
Atom interferometry aboard an Earth-orbiting research lab — •Matthias Meister1, Naceur Gaaloul2, Nicholas P. Bigelow3, and the CUAS team1,2,3,4 — 1Institute of Quantum Technologies, German Aerospace Center (DLR), Ulm, Germany — 2Leibniz University Hannover, Institute of Quantum Optics, QUEST-Leibniz Research School, Hanover, Germany — 3Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA — 4Institut für Quantenphysik and Center for Integrated Quantum Science and Technology IQST, Ulm University, Ulm, Germany
Atom interferometers based on Bose-Einstein condensates are exquisite systems for quantum sensing applications such as Earth observation, relativistic geodesy, and tests of fundamental physical concepts. The sensitivity of these devices depends on the free fall time of the quantum gas and, therefore, can be strongly improved by working in a microgravity environment. Here we report on a series of experiments performed with NASA’s Cold Atom Lab aboard the ISS demonstrating atom interferometers with different geometries in orbit. By employing Mach-Zehnder-type interferometers we have realized atomic magnetometers and successfully compared their outcome to complementary non-interferometric measurements. Our results pave the way towards future precision measurements with atom interferometers in space.
This project is supported by NASA/JPL through RSA No. 1616833 and the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under the grant numbers 50WP1705 and 50WM1861-1862.