Number-resolved preparation of mesoscopic atomic ensembles
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 f...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/abd058 |
| _version_ | 1797750270865702912 |
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| author | A Hüper C Pür M Hetzel J Geng J Peise I Kruse M Kristensen W Ertmer J Arlt C Klempt |
| author_facet | A Hüper C Pür M Hetzel J Geng J Peise I Kruse M Kristensen W Ertmer J Arlt C Klempt |
| author_sort | A Hüper |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-12T16:30:17Z |
| format | Article |
| id | doaj.art-2c7291bc92e7477baa9fe7a76ae5683c |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:30:17Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2c7291bc92e7477baa9fe7a76ae5683c2023-08-08T15:30:45ZengIOP PublishingNew Journal of Physics1367-26302021-01-01231111304610.1088/1367-2630/abd058Number-resolved preparation of mesoscopic atomic ensemblesA Hüper0https://orcid.org/0000-0002-7161-4435C Pür1M Hetzel2J Geng3J Peise4I Kruse5M Kristensen6https://orcid.org/0000-0002-9667-2789W Ertmer7J Arlt8https://orcid.org/0000-0002-5782-3927C Klempt9Institut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, GermanyInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, GermanyInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, GermanyInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, Germany; Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering , Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China; Institute of Advanced Technology, Westlake Institute for Advanced Study , 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, ChinaInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, GermanyInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, GermanyCenter for Complex Quantum Systems, Department of Physics and Astronomy , Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, Germany; DLR Institut für Satellitengeodäsie und Inertialsensorik, Callinstr. 36, 30167 HannoverCenter for Complex Quantum Systems, Department of Physics and Astronomy , Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkInstitut für Quantenoptik, Leibniz Universität Hannover , Welfengarten 1, 30167 Hannover, Germany; DLR Institut für Satellitengeodäsie und Inertialsensorik, Callinstr. 36, 30167 HannoverThe 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.https://doi.org/10.1088/1367-2630/abd058single-atom resolutionaccurate atom countingsub-Poissonian number fluctuations |
| spellingShingle | A Hüper C Pür M Hetzel J Geng J Peise I Kruse M Kristensen W Ertmer J Arlt C Klempt Number-resolved preparation of mesoscopic atomic ensembles New Journal of Physics single-atom resolution accurate atom counting sub-Poissonian number fluctuations |
| title | Number-resolved preparation of mesoscopic atomic ensembles |
| title_full | Number-resolved preparation of mesoscopic atomic ensembles |
| title_fullStr | Number-resolved preparation of mesoscopic atomic ensembles |
| title_full_unstemmed | Number-resolved preparation of mesoscopic atomic ensembles |
| title_short | Number-resolved preparation of mesoscopic atomic ensembles |
| title_sort | number resolved preparation of mesoscopic atomic ensembles |
| topic | single-atom resolution accurate atom counting sub-Poissonian number fluctuations |
| url | https://doi.org/10.1088/1367-2630/abd058 |
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