Hannover 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 28: Poster Session - Atomic Physics IV

A 28.10: Poster

Donnerstag, 12. März 2020, 16:00–18:00, Empore Lichthof

Creation and splitting of quantum degenerate gases in painted optical potentials - a toolbox for guided atom interferometry — •Knut Stolzenberg, Sebastian Bode, Alexander Herbst, Henning Albers, Ernst M. Rasel, and Dennis Schlippert — Institute of Quantum Optics, Leibniz University Hannover

Guided atom interferometers promise to be compact and robust inertial sensors with excellent long-term stability. An acousto-optic deflector (AOD) is used to create arbitrary time averaged optical dipole potentials by diffracting the beam of a high power 1064nm laser. This allows for (i) a fast evaporation to quantum degeneracy of ⁸⁷Rb and (ii) the generation of multiple distinct potential wells. The latter are utilized to split and guide the ensemble. After a free evolution time of T=1 s the clouds are spatially overlapped and interference patterns are observed. We show first results in single and differential matter wave interferometer configuration with magnetically sensitive and insensitive states and discuss future prospects of fully guided interferometry.

This work is funded by the Federal Ministry of Education and Research (BMBF) through the funding program Photonics Research Germany (contract number 13N14875), and the DFG under Germany’s Excellence Strategy (EXC 2123) "QuantumFrontiers".