Mainz 2026 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 61: Matter Wave Interferometry and Metrology III

Q 61.7: Vortrag

Donnerstag, 5. März 2026, 16:00–16:15, P 11

Thermal qualification of an atom chip vacuum system — •Markus Trost and Maike Diana Lachmann — Airbus Defence and Space GmbH, Willy-Messerschmitt-Strasse 1, 82024 Taufkirchen, Gernamy

Matter-wave interferometry with ultra-cold atomic ensembles has developed as a promising prospect for acceleration measurements leading to increased long-term stability. Placing such sensors on satellites, offers a variety of application cases such as gravimetry on a global scale, testing fundamental physics or using it to detect drifts of satellites. However, this kind of sensor requires several prerequisites like for example magnetic field creation or an ultra-high vacuum system to generate an ultra-cold ensemble of atoms. While this technology is already well proven on ground-based setups, sounding rockets and the ISS, there has not yet been a dedicated standalone satellite mission for such a system. Particularly the qualification for the unstable thermal conditions on a satellite platform has not been performed yet. Therefore, the Cold Atom Interferometry Vacuum System (CAIVAS) project was initiated by ESA. Within this project, an atom-chip ultra-high vacuum system made for space-based usage is designed and realized. Thermal requirements were defined and subsequently verified. The results of the study will be presented in this talk.

Keywords: Cold; Atom; Interferometry; Vacuum; System