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High-performance cavity-enhanced quantum memory with warm atomic cell
High-performance quantum memory for quantized states of light is a prerequisite building block of quantum information technology. Despite great progresses of optical quantum memories based on interactions of light and atoms, physical features of these memories still cannot satisfy requirements for a...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9061733/ https://www.ncbi.nlm.nih.gov/pubmed/35501315 http://dx.doi.org/10.1038/s41467-022-30077-1 |
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author | Ma, Lixia Lei, Xing Yan, Jieli Li, Ruiyang Chai, Ting Yan, Zhihui Jia, Xiaojun Xie, Changde Peng, Kunchi |
author_facet | Ma, Lixia Lei, Xing Yan, Jieli Li, Ruiyang Chai, Ting Yan, Zhihui Jia, Xiaojun Xie, Changde Peng, Kunchi |
author_sort | Ma, Lixia |
collection | PubMed |
description | High-performance quantum memory for quantized states of light is a prerequisite building block of quantum information technology. Despite great progresses of optical quantum memories based on interactions of light and atoms, physical features of these memories still cannot satisfy requirements for applications in practical quantum information systems, since all of them suffer from trade-off between memory efficiency and excess noise. Here, we report a high-performance cavity-enhanced electromagnetically-induced-transparency memory with warm atomic cell in which a scheme of optimizing the spatial and temporal modes based on the time-reversal approach is applied. The memory efficiency up to 67 ± 1% is directly measured and a noise level close to quantum noise limit is simultaneously reached. It has been experimentally demonstrated that the average fidelities for a set of input coherent states with different phases and amplitudes within a Gaussian distribution have exceeded the classical benchmark fidelities. Thus the realized quantum memory platform has been capable of preserving quantized optical states, and is ready to be applied in quantum information systems, such as distributed quantum logic gates and quantum-enhanced atomic magnetometry. |
format | Online Article Text |
id | pubmed-9061733 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90617332022-05-04 High-performance cavity-enhanced quantum memory with warm atomic cell Ma, Lixia Lei, Xing Yan, Jieli Li, Ruiyang Chai, Ting Yan, Zhihui Jia, Xiaojun Xie, Changde Peng, Kunchi Nat Commun Article High-performance quantum memory for quantized states of light is a prerequisite building block of quantum information technology. Despite great progresses of optical quantum memories based on interactions of light and atoms, physical features of these memories still cannot satisfy requirements for applications in practical quantum information systems, since all of them suffer from trade-off between memory efficiency and excess noise. Here, we report a high-performance cavity-enhanced electromagnetically-induced-transparency memory with warm atomic cell in which a scheme of optimizing the spatial and temporal modes based on the time-reversal approach is applied. The memory efficiency up to 67 ± 1% is directly measured and a noise level close to quantum noise limit is simultaneously reached. It has been experimentally demonstrated that the average fidelities for a set of input coherent states with different phases and amplitudes within a Gaussian distribution have exceeded the classical benchmark fidelities. Thus the realized quantum memory platform has been capable of preserving quantized optical states, and is ready to be applied in quantum information systems, such as distributed quantum logic gates and quantum-enhanced atomic magnetometry. Nature Publishing Group UK 2022-05-02 /pmc/articles/PMC9061733/ /pubmed/35501315 http://dx.doi.org/10.1038/s41467-022-30077-1 Text en © The Author(s) 2022 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 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/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Ma, Lixia Lei, Xing Yan, Jieli Li, Ruiyang Chai, Ting Yan, Zhihui Jia, Xiaojun Xie, Changde Peng, Kunchi High-performance cavity-enhanced quantum memory with warm atomic cell |
title | High-performance cavity-enhanced quantum memory with warm atomic cell |
title_full | High-performance cavity-enhanced quantum memory with warm atomic cell |
title_fullStr | High-performance cavity-enhanced quantum memory with warm atomic cell |
title_full_unstemmed | High-performance cavity-enhanced quantum memory with warm atomic cell |
title_short | High-performance cavity-enhanced quantum memory with warm atomic cell |
title_sort | high-performance cavity-enhanced quantum memory with warm atomic cell |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9061733/ https://www.ncbi.nlm.nih.gov/pubmed/35501315 http://dx.doi.org/10.1038/s41467-022-30077-1 |
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