Gravity Sensing with Very Long Baseline Atom Interferometry (A02)

• Subject Area: Geodesy, Photogrammetry, Remote Sensing, Geoinformatics, Cartography ; Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 434617780

Very Long Baseline Atom Interferometry (VLBAI) with Bose-Einstein Condensates (BECs) raises great potential for high-accuracy absolute gravimetry. With a vertical extension of about 10 m, we target sensitivities competing with those of superconducting gravimeters. In this project, we will demonstrate, for the first time, the operation of a VLBAI gravimeter serving as a gravity reference station, providing the methods for future devices with superior accuracy at geodetic observatories or other locations of special interest.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1464: Relativistic and quantum-based geodesy (TerraQ)
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Professor Dr. Ernst Maria Rasel; Dr. Dennis Schlippert