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Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption
Noise and decoherence due to spurious two-level systems located at material interfaces are long-standing issues for solid-state quantum devices. Efforts to mitigate the effects of two-level systems have been hampered by a lack of knowledge about their chemical and physical nature. Here, by combining...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5861058/ https://www.ncbi.nlm.nih.gov/pubmed/29559633 http://dx.doi.org/10.1038/s41467-018-03577-2 |
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author | de Graaf, S. E. Faoro, L. Burnett, J. Adamyan, A. A. Tzalenchuk, A. Ya. Kubatkin, S. E. Lindström, T. Danilov, A. V. |
author_facet | de Graaf, S. E. Faoro, L. Burnett, J. Adamyan, A. A. Tzalenchuk, A. Ya. Kubatkin, S. E. Lindström, T. Danilov, A. V. |
author_sort | de Graaf, S. E. |
collection | PubMed |
description | Noise and decoherence due to spurious two-level systems located at material interfaces are long-standing issues for solid-state quantum devices. Efforts to mitigate the effects of two-level systems have been hampered by a lack of knowledge about their chemical and physical nature. Here, by combining dielectric loss, frequency noise and on-chip electron spin resonance measurements in superconducting resonators, we demonstrate that desorption of surface spins is accompanied by an almost tenfold reduction in the charge-induced frequency noise in the resonators. These measurements provide experimental evidence that simultaneously reveals the chemical signatures of adsorbed magnetic moments and highlights their role in generating charge noise in solid-state quantum devices. |
format | Online Article Text |
id | pubmed-5861058 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58610582018-03-22 Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption de Graaf, S. E. Faoro, L. Burnett, J. Adamyan, A. A. Tzalenchuk, A. Ya. Kubatkin, S. E. Lindström, T. Danilov, A. V. Nat Commun Article Noise and decoherence due to spurious two-level systems located at material interfaces are long-standing issues for solid-state quantum devices. Efforts to mitigate the effects of two-level systems have been hampered by a lack of knowledge about their chemical and physical nature. Here, by combining dielectric loss, frequency noise and on-chip electron spin resonance measurements in superconducting resonators, we demonstrate that desorption of surface spins is accompanied by an almost tenfold reduction in the charge-induced frequency noise in the resonators. These measurements provide experimental evidence that simultaneously reveals the chemical signatures of adsorbed magnetic moments and highlights their role in generating charge noise in solid-state quantum devices. Nature Publishing Group UK 2018-03-20 /pmc/articles/PMC5861058/ /pubmed/29559633 http://dx.doi.org/10.1038/s41467-018-03577-2 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 de Graaf, S. E. Faoro, L. Burnett, J. Adamyan, A. A. Tzalenchuk, A. Ya. Kubatkin, S. E. Lindström, T. Danilov, A. V. Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title | Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title_full | Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title_fullStr | Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title_full_unstemmed | Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title_short | Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
title_sort | suppression of low-frequency charge noise in superconducting resonators by surface spin desorption |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5861058/ https://www.ncbi.nlm.nih.gov/pubmed/29559633 http://dx.doi.org/10.1038/s41467-018-03577-2 |
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