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Q: Fachverband Quantenoptik und Photonik

Q 32: Atom & Ion Clocks and Metrology II

Q 32.7: Vortrag

Mittwoch, 12. März 2025, 12:45–13:00, HS Botanik

Scenario Building of a Quantum Space Gravimetry Mission for Earth Observation — •Gina Kleinsteinberg, Christian Struckmann, and Naceur Gaaloul — Leibniz University Hannover, Institute of Quantum Optics, Welfengarten 1, 30167 Hannover

Space-borne quantum sensors, being drift- and calibration-free, are in the future promising to outperform classical accelerometers currently used for space gravimetry. In the presence of climate change, quantum space gravimetry holds the potential to enable deeper insights into the changes in Earth’s static and time-variable gravitational field, driven by the redistribution of large water masses.

To derive the precise requirements on the satellite platform and the experimental setup for a mission embarking a space-borne quantum sensor, extensive simulations are required. In this contribution, we present a simulation tool capable of building and analysing scenarios for quantum pathfinder gravimetry missions. This includes simulations of the atom interferometer itself as well as detailed analyses of systematic effects arising from environmental influences. To this end, multi-objective optimisation is used to explore options for balancing the multitude of mission parameters, while simultaneously optimising the sensor performance. The tool is developed in close cooperation with the geodesy community, leveraging the capabilities of classical satellite simulations and enabling the generation of realistic, synthetic atom interferometer phase signals. This work is supported by DLR funds from the BMWK (50WM2263A-CARIOQA-GE and 50WM2253A-(AI)^2).

Keywords: Atom Interferometry; Space; Gravimetry; Earth Observation; Quantum Sensing