Bulletin of the American Physical Society
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 67, Number 7
Monday–Friday, May 30–June 3 2022; Orlando, Florida
Session F01: Poster Session I (4:30-6:30pm, EDT)
4:30 PM,
Tuesday, May 31, 2022
Room: Grand Ballroom C
Abstract: F01.00085 : Towards trapped atom interferometry for quantum inertial sensing: Creating, shaping and manipulating BECs
Presenter:
Alexander Herbst
(Leibniz University Hannover, Institute of Quantum Optics)
Authors:
Alexander Herbst
(Leibniz University Hannover, Institute of Quantum Optics)
Knut Stolzenberg
(Leibniz University Hannover, Institute of Quantum Optics)
Henning Albers
(Leibniz University Hannover, Institute of Quantum Optics)
Sebastian Bode
(Leibniz University Hannover, Institute of Quantum Optics)
Dennis Schlippert
(Leibniz University Hannover, Institute of Quantum Optics)
We report on our progress towards such systems in which we realize Bose-Einstein condensation and atom optical operations in an optical waveguide. Using time-averaged optical dipole potentials to create and shape our trap, we show coherent splitting and recombination of our atomic ensemble by tunnelling and combinations thereof with Bragg beam splitting. Beyond demonstrations with 87Rb, we also implement 39K. By tuning its scattering length with a magnetic Feshbach resonance we decrease our evaporation time by a factor of 5 to 850 ms, while doubling the atomic flux. We discuss additional applications of our setup for matter wave lensing, showing a reduction in expansion temperature by an order of magnitude with possible applications in free falling inertial sensitive atom interferometers.
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