Acoustic frequency atomic spin oscillator in the quantum regime

Quantum noise reduction and entanglement-enhanced sensing in the acoustic frequency range is an outstanding challenge relevant for a number of applications including magnetometry and broadband noise reduction in gravitational wave detectors. Here we experimentally demonstrate quantum behavior of a m...

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Detalles Bibliográficos
Autores principales: Jia, Jun, Novikov, Valeriy, Brasil, Tulio Brito, Zeuthen, Emil, Müller, Jörg Helge, Polzik, Eugene S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10570288/
https://www.ncbi.nlm.nih.gov/pubmed/37828042
http://dx.doi.org/10.1038/s41467-023-42059-y
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author Jia, Jun
Novikov, Valeriy
Brasil, Tulio Brito
Zeuthen, Emil
Müller, Jörg Helge
Polzik, Eugene S.
author_facet Jia, Jun
Novikov, Valeriy
Brasil, Tulio Brito
Zeuthen, Emil
Müller, Jörg Helge
Polzik, Eugene S.
author_sort Jia, Jun
collection PubMed
description Quantum noise reduction and entanglement-enhanced sensing in the acoustic frequency range is an outstanding challenge relevant for a number of applications including magnetometry and broadband noise reduction in gravitational wave detectors. Here we experimentally demonstrate quantum behavior of a macroscopic atomic spin oscillator in the acoustic frequency range. Quantum back-action of the spin measurement, ponderomotive squeezing of light, and virtual spring softening are observed at oscillation frequencies down to the sub-kHz range. Quantum noise sources characteristic of spin oscillators operating in the near-DC frequency range are identified and means for their mitigation are presented.
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spelling pubmed-105702882023-10-14 Acoustic frequency atomic spin oscillator in the quantum regime Jia, Jun Novikov, Valeriy Brasil, Tulio Brito Zeuthen, Emil Müller, Jörg Helge Polzik, Eugene S. Nat Commun Article Quantum noise reduction and entanglement-enhanced sensing in the acoustic frequency range is an outstanding challenge relevant for a number of applications including magnetometry and broadband noise reduction in gravitational wave detectors. Here we experimentally demonstrate quantum behavior of a macroscopic atomic spin oscillator in the acoustic frequency range. Quantum back-action of the spin measurement, ponderomotive squeezing of light, and virtual spring softening are observed at oscillation frequencies down to the sub-kHz range. Quantum noise sources characteristic of spin oscillators operating in the near-DC frequency range are identified and means for their mitigation are presented. Nature Publishing Group UK 2023-10-12 /pmc/articles/PMC10570288/ /pubmed/37828042 http://dx.doi.org/10.1038/s41467-023-42059-y Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Jia, Jun
Novikov, Valeriy
Brasil, Tulio Brito
Zeuthen, Emil
Müller, Jörg Helge
Polzik, Eugene S.
Acoustic frequency atomic spin oscillator in the quantum regime
title Acoustic frequency atomic spin oscillator in the quantum regime
title_full Acoustic frequency atomic spin oscillator in the quantum regime
title_fullStr Acoustic frequency atomic spin oscillator in the quantum regime
title_full_unstemmed Acoustic frequency atomic spin oscillator in the quantum regime
title_short Acoustic frequency atomic spin oscillator in the quantum regime
title_sort acoustic frequency atomic spin oscillator in the quantum regime
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10570288/
https://www.ncbi.nlm.nih.gov/pubmed/37828042
http://dx.doi.org/10.1038/s41467-023-42059-y
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