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SAMOP 2023 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 22: Poster II

Q 22.43: Poster

Tuesday, March 7, 2023, 16:30–19:00, Empore Lichthof

Rapid generation and number-resolved detection of spinor Rubidium Bose-Einstein condensatesCebrail Pür1, Mareike Hetzel1, •Martin Quensen1, Andreas Hüper1,4, Jiao Geng2,3, Wolfgang Ertmer1,4, and Carsten Klempt1,41Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany — 2Key Laboratory of 3D Micro/Nano Fabrication and Characterization, School of Engineering, Westlake University, Zhejiang Province, China — 3Institute of Advanced Technology, Westlake Institute for Advanced Study, Zhejiang Province, China — 4Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Inertialsensorik (DLR-SI), Callinstraße 30b, D-30167 Hannover, Germany

High data acquisition rates and low-noise detection of ultracold neutral atoms present important challenges for high-precision atom interferometers that exploit the excellent mode quality of Bose-Einstein condensates. Here, we present a high-flux source of Rb-87 Bose-Einstein condensates combined with a number-resolving detection.

For the high-fidelity tomography of many-body quantum states in the spin degree of freedom, it is desirable to select a single mode for a number-resolving detection. We demonstrate the low-noise selection of subsamples with average atom numbers of up to 35 and their subsequent detection via accurate atom counting. The presented techniques offer an exciting path towards the creation and analysis of mesoscopic quantum states with unprecedented fidelities, and their exploitation for fundamental and metrological applications.

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