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

authored by
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

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.

Institute of Quantum Optics
Quantum Sensing
Quantum Atom Optics
External Organisation(s)
Center of Applied Space Technology and Microgravity (ZARM)
Université Paris-Saclay
DLR-Institute for Satellite Geodesy and Inertial Sensing
Publication date
Publication status
E-pub ahead of print
Electronic version(s) (Access: Open)