EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Quantum sensors for gravimetry and gravity gradiometry

Christian Schubert, Waldemar Herr, Sven Abend, Naceur Gaaloul, Dennis Schlippert, Wolfgang Ertmer, and Ernst M. Rasel
Christian Schubert et al.
  • Gottfried Wilhelm Leibniz Universität Hannover, Institut für Quantenoptik, Hannover, Germany

Quantum sensors utilising atom interferometry enable absolute measurements of gravity (1) and gravity gradients (2). This contribution will introduce the operation principle of atom interferometers, discuss their current state of the art and limitations, and outline the key techniques for improvements. It will report on our developments for transportable (3) and stationary high-perfomance devices (4) and give a perspective for space-borne quantum sensors in the frame of geodetic missions (5).
The presented work is supported by the CRC 1227 DQmat within the project B07, the German Space Agency (DLR) with funds provided by the Federal Ministry of Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under Grant No. DLR 50WP1700, 50WM1952, by "Niedersächsisches Vorab" through "Förderung von Wissenschaft und Technik in Forschung und Lehre" for the initial funding of research in the new DLR-SI Institute, and through the "Quantum and Nano- Metrology (QUANOMET)" initiative within the project QT3.

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(2) P. Asenbaum et al., Phys. Rev. Lett. 118, 183602, 2017; G. Rosi et al., Nature 510, 518, 2014; J. M. McGuirk et al., Phys. Rev. A 65, 033608, 2002.
(3) S. Abend et al., Proceedings of the International School of Physics "Enrico Fermi" 197, 393, 2019; S. Abend et al., Phys. Rev. Lett. 117, 203003, 2016.
(4) D. Schlippert et al., arXiv:1909.08524; J. Hartwig et al., New J. Phys. 17, 035011, 2015.
(5) A. Trimeche et al., Class. Quantum Grav. 36, 215004, 2019; K. Douch et al., Adv. Space. Res. 61, 1301, 2018.

How to cite: Schubert, C., Herr, W., Abend, S., Gaaloul, N., Schlippert, D., Ertmer, W., and Rasel, E. M.: Quantum sensors for gravimetry and gravity gradiometry, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-19873,, 2020