Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics II
Q 42.13: Poster
Mittwoch, 13. März 2019, 16:15–18:15, S Atrium Informatik
Hybridization of magnetic chip and optical dipole traps for cold atom experiments — •Simon Kanthak1, Martina Gebbe2, Matthias Gersemann3, Klaus Döringshoff1, Sven Abend3, Ernst Rasel3, Markus Krutzik1, Achim Peters1, and the QUANTUS team1,2,3,4,5 — 1Institut für Physik, HU Berlin — 2ZARM, Universität Bremen — 3IQ, LU Hannover — 4Institut für Physik, JGU Mainz — 5Ferdinand-Braun-Institut, Berlin
Inertial sensors based on matter wave interferometry highly benefit from low expansion rates and extended interrogation times of ultra-cold atomic samples enabling precision measurements. While atom chip technology allows for a fast and efficient production of ultra-cold quantum gases, optical dipole traps offer various advantages compared to magnetic traps such as trapping of all magnetic sub-levels, painting potentials, further reduction of the expansion rates via delta-kick collimation with improved harmonic potentials or the application of Feshbach fields to control the atomic interactions.
In the QUANTUS-1 experiment, we approach a hybrid concept to combine the benefits of both trap types. In this poster, we report on our methods to load a 87Rb BEC from the chip trap into a low power, 1064 nm dipole trap. We discuss trap characteristics and present future prospects such as an optical waveguide atom interferometer and concepts relevant for the spaceborne MAIUS and BECCAL missions.
This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR50WP1432 and DLR50WM1852.