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Q: Fachverband Quantenoptik und Photonik
Q 33: Matter Wave Interferometry I
Q 33.2: Vortrag
Mittwoch, 12. März 2025, 11:15–11:30, HS I
Space-deployed differential atom interferometers for magnetometry — •Matthias Meister1, Naceur Gaaloul2, Nicholas P. Bigelow3, and the CUAS team1,2,3,4 — 1German Aerospace Center (DLR), Institute of Quantum Technologies, Ulm, Germany — 2Leibniz University Hannover, Institute of Quantum Optics, QUESTLeibniz 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
Matter-wave interferometers deployed in space are excellent tools for high precision measurements, relativistic geodesy, or Earth observation. In particular, differential interferometric setups feature common-mode noise suppression and enable reliable measurements in presence of ambient platform noise. Here we report on orbital magnetometry campaigns performed with differential Mach-Zehnder and differential butterfly interferometers on NASA’s Cold Atom Lab aboard the International Space Station. By comparing measurements with atoms in magnetically sensitive and insensitive states, we have measured tiny magnetic-field force gradients and set bounds on force curvatures. Our results pave the way towards precision quantum sensing missions in space.
This work is supported by NASA/JPL through RSA No. 1616833 and the DLR Space Administration with funds provided by the Federal Ministry for Economic Affairs and Climate Action (BMWK) under grant numbers 50WM2245-A/B.
Keywords: Atom interferometry; Space; Bose-Einstein condensates; Magnetometry