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Number-resolved preparation of mesoscopic atomic ensembles

Hüper, Andreas and Pür, Cebrail and Hetzel, Mareike and Geng, Jiao and Kruse, Ilka and Kristensen, Mick and Ertmer, Wolfgang and Arlt, Jan and Klempt, Carsten (2021) Number-resolved preparation of mesoscopic atomic ensembles. New Journal of Physics, 23 (11), p. 113046. Institute of Physics (IOP) Publishing. doi: 10.1088/1367-2630/abd058. ISSN 1367-2630.

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Official URL: https://iopscience.iop.org/article/10.1088/1367-2630/abd058

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.

Item URL in elib:https://elib.dlr.de/187268/
Document Type:Article
Title:Number-resolved preparation of mesoscopic atomic ensembles
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hüper, AndreasInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germanyhttps://orcid.org/0000-0002-7161-4435
Pür, CebrailInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Hetzel, MareikeInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Geng, JiaoInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Kruse, IlkaInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Kristensen, MickCenter for Complex Quantum Systems, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmarkhttps://orcid.org/0000-0002-9667-2789
Ertmer, WolfgangWolfgang.Ertmer (at) dlr.deUNSPECIFIED
Arlt, JanCenter for Complex Quantum Systems, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmarkhttps://orcid.org/0000-0002-5782-3927
Klempt, CarstenCarsten.Klempt (at) dlr.dehttps://orcid.org/0000-0003-2402-3162
Date:13 December 2021
Journal or Publication Title:New Journal of Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:23
DOI :10.1088/1367-2630/abd058
Page Range:p. 113046
Publisher:Institute of Physics (IOP) Publishing
ISSN:1367-2630
Status:Published
Keywords:Quantentechnologie, Atominterferometrie, Atomdetektion
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Quantum metrology under zero-gravity conditions (QUAMETUS)
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Quantum Limits of Metrology
Deposited By: Klempt, Carsten
Deposited On:11 Jul 2022 08:02
Last Modified:11 Jul 2022 08:02

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