Number-resolved preparation of mesoscopic atomic ensembles

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dc.identifier.uri Hüper, Andreas Pür, Cebrail Hetzel, Mareike Geng, Jiao Peise, Jan Kruse, Ilka Althoff Kristensen, Mick Ertmer, Wolfgang Arlt, Jan J. Klempt, Carsten 2021-06-22T08:11:57Z 2021-06-22T08:11:57Z 2021
dc.identifier.citation Hüper, A.; Pür, C.; Hetzel, M.; Geng, J.; Peise, J.; et al.: Number-resolved preparation of mesoscopic atomic ensembles. In: New Journal of Physics (2020), in press. DOI:
dc.description.abstract The analysis of entangled atomic ensembles and their application for interferometry beyond the standard quantum limit requires an accurate determination of the number of atoms. We present an accurate fluorescence detection technique for atoms that is fully integrated into an experimental apparatus for the production of many-particle entangled quantum states. Number-resolved fluorescence measurements with single-atom accuracy for 1 up to 30 atoms are presented. According to our noise analysis, we extrapolate that the single-atom accuracy extends to a limiting atom number of 390(20) atoms. We utilize the accurate atom number detection for a number stabilization of the laser-cooled atomic ensemble. For a target ensemble size of 7 atoms prepared on demand, we achieve a 92(2)% preparation fidelity and reach number fluctuations 18(1) dB below the shot noise level using real-time feedback on the magneto-optical trap. eng
dc.language.iso eng
dc.publisher London : IOP
dc.relation.ispartofseries New Journal of Physics (2020)
dc.rights CC BY 3.0 Unported
dc.subject.ddc 530 | Physik ger
dc.title Number-resolved preparation of mesoscopic atomic ensembles
dc.type Article
dc.type Text
dc.relation.essn 1367-2630
dc.bibliographicCitation.firstPage in press
dc.description.version acceptedVersion
tib.accessRights frei zug�nglich

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