Theory of LMT atom interferometers involving gravitational fields (A05)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 274200144

In this project, we generalize the microscopic models of large-momentum-transfer (LMT) Bragg and Bloch light-pulse atom interferometry developed in the previous funding period. Indeed, we include transverse effects of motion, evaluate the sensitivity function of full interferometers, study multi-loop geometries and cover other classes of interferometers featuring a change of the internal state to include Raman and 1-photon transitions. We apply these concepts to atom-interferometric tests of General Relativity by generalizing previously developed post-Newtonian schemes. This will allow the application of our models in the VLBAI facility or in space-based interferometers.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1227: Designed Quantum States of Matter (DQ-mat) - generation, manipulation, and detection for metrological applications and tests of fundamental physics
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Dr. Naceur Gaaloul, since 7/2020; Professor Dr. Domenico Giulini, from 7/2020 until 6/2024; Professor Dr. Klemens Hammerer