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All-Optical Matter-Wave Lens using Time-Averaged Potentials

verfasst von
H. Albers, R. Corgier, A. Herbst, A. Rajagopalan, C. Schubert, C. Vogt, M. Woltmann, C. Lämmerzahl, S. Herrmann, E. Charron, W. Ertmer, E. M. Rasel, N. Gaaloul, D. Schlippert
Abstract

The stability of matter-wave sensors benefits from interrogating large-particle-number atomic ensembles at high cycle rates. The use of quantum-degenerate gases with their low effective temperatures allows constraining systematic errors towards highest accuracy, but their production by evaporative cooling is costly with regard to both atom number and cycle rate. In this work, we report on the creation of cold matter-waves using a crossed optical dipole trap and shaping it by means of an all-optical matter-wave lens. We demonstrate the trade off between residual kinetic energy and atom number by short-cutting evaporative cooling and estimate the corresponding performance gain in matter-wave sensors. Our method is implemented using time-averaged optical potentials and hence easily applicable in optical dipole trapping setups.

Organisationseinheit(en)
Institut für Quantenoptik
Quantum Sensing
Quantum Atom Optics
Externe Organisation(en)
Zentrum für angewandte Raumfahrt­technologie und Mikro­gravitation (ZARM)
Universität Paris-Saclay
DLR-Institut für Satellitengeodäsie und Inertialsensorik
Typ
Preprint
Publikationsdatum
17.09.2021
Publikationsstatus
Elektronisch veröffentlicht (E-Pub)
Elektronische Version(en)
https://doi.org/10.48550/arXiv.2109.08608 (Zugang: Offen)