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Q: Fachverband Quantenoptik und Photonik
Q 22: Precision Measurements and Metrology I (joint session Q/A)
Q 22.11: Poster
Tuesday, March 15, 2022, 16:30–18:30, P
An overview of Very Long Baseline Atom Interferometry facility — •Abhishek Purohit1, Klaus H. Zipfel1, Ali Lezeik1, Dorothee Tell1, Christian Meiners1, Christian Schubert1,2, Ernst M. Rasel1, and Dennis Schlippert1 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Germany — 2German Aerospace Center (DLR), Institute for Satellite Geodesy and Inertial Sensing, Hannover, Germany
Our Very Long Baseline Atom Interferometry (VLBAI) facility aims for a complementary method to the state-of-the-art gradiometers and gravimeters when operated with a single atomic species, and for quantum tests of the universality of free fall at levels comparable to the best classical tests and beyond in a mode with two atomic species.
We discuss the main components of the Hannover VLBAI facility: the sources for ultra-cold atom samples, a magnetically shielded interferometry zone, state-of-the-art vibration isolation and gravity gradient mapping and modeling with an uncertainty below the 10 nm/s2 level. We also show the design and target performance for applications in geodesy and tests of fundamental physics.
The VLBAI facility is a major research equipment funded by the DFG. We acknowledge support from the CRCs 1128 *geo-Q* and 1227 *DQ-mat*