SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 22: Poster II
Q 22.2: Poster
Dienstag, 7. März 2023, 16:30–19:00, Empore Lichthof
Matter-wave lensing of shell-shaped Bose-Einstein condensates — •Patrick Boegel1, Alexander Wolf2, Matthias Meister2, and Maxim Efremov1,2 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, D-89081 Ulm, Germany — 2German Aerospace Center (DLR), Institute of Quantum Technologies, D-89081 Ulm, Germany
Motivated by the recent experimental realization [1] of ultracold quantum gases in shell topology, we propose a straightforward implementation of matter-wave lensing techniques for shell-shaped Bose-Einstein condensates. This approach allows to significantly extend the observation time of the condensate shell during its free expansion and enables the study of novel quantum many-body effects on curved geometries. With both analytical and numerical methods, we derive optimal parameters for realistic lensing schemes to conserve the shell shape of the condensate for times up to hundreds of milliseconds [2].
This project is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Climate Action (BMWK) due to an enactment of the German Bundestag under Grants Nos. 50WM1862 and 50WM2245B.
[1] Nature 606, pages 281-286 (2022)
[2] P Boegel, et. al, arXiv:2209.04672