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Atomic-state diagnostics and optimization in cold-atom experiments

We report on the creation, observation and optimization of superposition states of cold atoms. In our experiments, rubidium atoms are prepared in a magneto-optical trap and later, after switching off the trapping fields, Faraday rotation of a weak probe beam is used to characterize atomic states pre...

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Detalles Bibliográficos
Autores principales: Sycz, Krystian, Wojciechowski, Adam M., Gawlik, Wojciech
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5809594/
https://www.ncbi.nlm.nih.gov/pubmed/29434281
http://dx.doi.org/10.1038/s41598-018-20522-x
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author Sycz, Krystian
Wojciechowski, Adam M.
Gawlik, Wojciech
author_facet Sycz, Krystian
Wojciechowski, Adam M.
Gawlik, Wojciech
author_sort Sycz, Krystian
collection PubMed
description We report on the creation, observation and optimization of superposition states of cold atoms. In our experiments, rubidium atoms are prepared in a magneto-optical trap and later, after switching off the trapping fields, Faraday rotation of a weak probe beam is used to characterize atomic states prepared by application of appropriate light pulses and external magnetic fields. We discuss the signatures of polarization and alignment of atomic spin states and identify main factors responsible for deterioration of the atomic number and their coherence and present means for their optimization, like relaxation in the dark with the strobed probing. These results may be used for controlled preparation of cold atom samples and in situ magnetometry of static and transient fields.
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spelling pubmed-58095942018-02-15 Atomic-state diagnostics and optimization in cold-atom experiments Sycz, Krystian Wojciechowski, Adam M. Gawlik, Wojciech Sci Rep Article We report on the creation, observation and optimization of superposition states of cold atoms. In our experiments, rubidium atoms are prepared in a magneto-optical trap and later, after switching off the trapping fields, Faraday rotation of a weak probe beam is used to characterize atomic states prepared by application of appropriate light pulses and external magnetic fields. We discuss the signatures of polarization and alignment of atomic spin states and identify main factors responsible for deterioration of the atomic number and their coherence and present means for their optimization, like relaxation in the dark with the strobed probing. These results may be used for controlled preparation of cold atom samples and in situ magnetometry of static and transient fields. Nature Publishing Group UK 2018-02-12 /pmc/articles/PMC5809594/ /pubmed/29434281 http://dx.doi.org/10.1038/s41598-018-20522-x Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Sycz, Krystian
Wojciechowski, Adam M.
Gawlik, Wojciech
Atomic-state diagnostics and optimization in cold-atom experiments
title Atomic-state diagnostics and optimization in cold-atom experiments
title_full Atomic-state diagnostics and optimization in cold-atom experiments
title_fullStr Atomic-state diagnostics and optimization in cold-atom experiments
title_full_unstemmed Atomic-state diagnostics and optimization in cold-atom experiments
title_short Atomic-state diagnostics and optimization in cold-atom experiments
title_sort atomic-state diagnostics and optimization in cold-atom experiments
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5809594/
https://www.ncbi.nlm.nih.gov/pubmed/29434281
http://dx.doi.org/10.1038/s41598-018-20522-x
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