Quantum test of the universality of free fall

D Schlippert, J Hartwig, H Albers, LL Richardson… - Physical Review Letters, 2014 - APS
We simultaneously measure the gravitationally induced phase shift in two Raman-type
matter-wave interferometers operated with laser-cooled ensembles of Rb 87 and K 39 …

Testing the universality of free fall with rubidium and ytterbium in a very large baseline atom interferometer

J Hartwig, S Abend, C Schubert… - New Journal of …, 2015 - iopscience.iop.org
We propose a very long baseline atom interferometer test of Einstein's equivalence principle
(EEP) with ytterbium and rubidium extending over 10 m of free fall. In view of existing …

An experimental approach for investigating many-body phenomena in Rydberg-interacting quantum systems

CS Hofmann, G Günter, H Schempp, NLM Müller… - Frontiers of …, 2014 - Springer
Recent developments in the study of ultracold Rydberg gases demand an advanced level of
experimental sophistication, in which high atomic and optical densities must be combined …

The space atom interferometer project: status and prospects

F Sorrentino, K Bongs, P Bouyer… - Journal of Physics …, 2011 - iopscience.iop.org
This paper presents the current status and future prospects of the Space Atom Interferometer
project (SAI), funded by the European Space Agency. Atom interferometry provides …

All-optical matter-wave lens using time-averaged potentials

H Albers, R Corgier, A Herbst, A Rajagopalan… - Communications …, 2022 - nature.com
The precision of matter-wave sensors benefits from interrogating large-particle-number
atomic ensembles at high cycle rates. Quantum-degenerate gases with their low effective …

Atom interferometry and its applications

S Abend, M Gersemann, C Schubert… - … of quantum theory, 2019 - ebooks.iospress.nl
We provide an introduction into the field of atom optics and review our work on
interferometry with cold atoms, and in particular with Bose-Einstein condensates. Here we …

Miniaturized lab system for future cold atom experiments in microgravity

S Kulas, C Vogt, A Resch, J Hartwig, S Ganske… - … Science and Technology, 2017 - Springer
We present the technical realization of a compact system for performing experiments with
cold 87 Rb and 39 K atoms in microgravity in the future. The whole system fits into a capsule …

Evaporative cooling from an optical dipole trap in microgravity

C Vogt, M Woltmann, S Herrmann, C Lämmerzahl… - Physical Review A, 2020 - APS
In recent years, cold atoms could prove their scientific impact not only on ground but in
microgravity environments such as the drop tower in Bremen, sounding rockets, and …

Optimized Bose-Einstein-condensate production in a dipole trap based on a 1070-nm multifrequency laser: Influence of enhanced two-body loss on the evaporation …

T Lauber, J Küber, O Wille, G Birkl - … Review A—Atomic, Molecular, and Optical …, 2011 - APS
We present an optimized strategy for the production of tightly confined Bose-Einstein
condensates (BEC) of 87 Rb in a crossed dipole trap with direct loading from a magneto …

Production of large Bose-Einstein condensates in a magnetic-shield-compatible hybrid trap

G Colzi, E Fava, M Barbiero, C Mordini, G Lamporesi… - Physical Review A, 2018 - APS
We describe the production of large Na 23 Bose-Einstein condensates in a hybrid trap
characterized by a weak magnetic field quadrupole and a tightly focused infrared beam. The …