SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 59: Poster IV
Q 59.21: Poster
Donnerstag, 9. März 2023, 16:30–19:00, Empore Lichthof
A compact setup for optically guided BEC interferometry at a single wavelength — •Simon Kanthak1,2, Ekim Hanimeli3, Matthias Gersemann4, Mikhail Cheredinov4, Sven Abend4, Ernst M. Rasel4, Markus Krutzik1,2, and the QUANTUS team1,2,3,4,5,6 — 1Institut für Physik, HU Berlin — 2Ferdinand-Braun-Institut, Berlin — 3ZARM, Universität Bremen — 4Institut für Quantenoptik, LU Hannover — 5Institut für Angewandte Physik, TU Darmstadt — 6Institut für Quantenphysik, Universität Ulm
Precision sensing with Bose-Einstein condensates (BECs) has been achieved in macroscopic free-space atom interferometers with underlying large scale enclosed space-time areas. As an alternative approach, trapped atom systems offer the opportunity for BEC sensors in more compact packages. For this purpose, atoms can be Bose condensed, delta-kick collimated, guided, split and recombined in optical potentials, which requires an optical guide, crossed beams and beam splitters usually at different wavelengths.
We report on our design and results with a linear setup for optically guided BEC interferometry at a single wavelength. Here, an atom chip serves to initially generate and delta-kick collimate a BEC inside a horizontally aligned atomic waveguide. A far-detuned focused beam in a retro-reflector configuration provides both tools to levitate and symmetrically split the wave packets via double Bragg diffraction.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economic Affairs and Climate Action (BMWK) under Grant No. 50WM2250B (QUANTUS+).