Multi-level quantum noise spectroscopy
Abstract System noise identification is crucial to the engineering of robust quantum systems. Although existing quantum noise spectroscopy (QNS) protocols measure an aggregate amount of noise affecting a quantum system, they generally cannot distinguish between the underlying processes that contrib...
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| Format: | Article |
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Springer Science and Business Media LLC
2022
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| Online Access: | https://hdl.handle.net/1721.1/141243 |
| _version_ | 1811090269759602688 |
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| author | Sung, Youngkyu Vepsäläinen, Antti Braumüller, Jochen Yan, Fei Wang, Joel I-Jan Kjaergaard, Morten Winik, Roni Krantz, Philip Bengtsson, Andreas Melville, Alexander J. Niedzielski, Bethany M. Schwartz, Mollie E. Kim, David K. Yoder, Jonilyn L. Orlando, Terry P. Gustavsson, Simon Oliver, William D. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Sung, Youngkyu Vepsäläinen, Antti Braumüller, Jochen Yan, Fei Wang, Joel I-Jan Kjaergaard, Morten Winik, Roni Krantz, Philip Bengtsson, Andreas Melville, Alexander J. Niedzielski, Bethany M. Schwartz, Mollie E. Kim, David K. Yoder, Jonilyn L. Orlando, Terry P. Gustavsson, Simon Oliver, William D. |
| author_sort | Sung, Youngkyu |
| collection | MIT |
| description | Abstract
System noise identification is crucial to the engineering of robust quantum systems. Although existing quantum noise spectroscopy (QNS) protocols measure an aggregate amount of noise affecting a quantum system, they generally cannot distinguish between the underlying processes that contribute to it. Here, we propose and experimentally validate a spin-locking-based QNS protocol that exploits the multi-level energy structure of a superconducting qubit to achieve two notable advances. First, our protocol extends the spectral range of weakly anharmonic qubit spectrometers beyond the present limitations set by their lack of strong anharmonicity. Second, the additional information gained from probing the higher-excited levels enables us to identify and distinguish contributions from different underlying noise mechanisms. |
| first_indexed | 2024-09-23T14:40:25Z |
| format | Article |
| id | mit-1721.1/141243 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:40:25Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1412432024-06-14T15:05:23Z Multi-level quantum noise spectroscopy Sung, Youngkyu Vepsäläinen, Antti Braumüller, Jochen Yan, Fei Wang, Joel I-Jan Kjaergaard, Morten Winik, Roni Krantz, Philip Bengtsson, Andreas Melville, Alexander J. Niedzielski, Bethany M. Schwartz, Mollie E. Kim, David K. Yoder, Jonilyn L. Orlando, Terry P. Gustavsson, Simon Oliver, William D. Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Lincoln Laboratory Massachusetts Institute of Technology. Department of Physics General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Abstract System noise identification is crucial to the engineering of robust quantum systems. Although existing quantum noise spectroscopy (QNS) protocols measure an aggregate amount of noise affecting a quantum system, they generally cannot distinguish between the underlying processes that contribute to it. Here, we propose and experimentally validate a spin-locking-based QNS protocol that exploits the multi-level energy structure of a superconducting qubit to achieve two notable advances. First, our protocol extends the spectral range of weakly anharmonic qubit spectrometers beyond the present limitations set by their lack of strong anharmonicity. Second, the additional information gained from probing the higher-excited levels enables us to identify and distinguish contributions from different underlying noise mechanisms. Department of Defense (DoD) 2022-03-17T11:53:47Z 2022-03-17T11:53:47Z 2021-02-11 Article http://purl.org/eprint/type/JournalArticle 2041-1723 https://hdl.handle.net/1721.1/141243 Sung, Y., Vepsäläinen, A., Braumüller, J. et al. Multi-level quantum noise spectroscopy. Nat Commun 12, 967 (2021) 10.1038/s41467-021-21098-3 10.1038/s41467-021-21098-3 Nature Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Sung, Youngkyu Vepsäläinen, Antti Braumüller, Jochen Yan, Fei Wang, Joel I-Jan Kjaergaard, Morten Winik, Roni Krantz, Philip Bengtsson, Andreas Melville, Alexander J. Niedzielski, Bethany M. Schwartz, Mollie E. Kim, David K. Yoder, Jonilyn L. Orlando, Terry P. Gustavsson, Simon Oliver, William D. Multi-level quantum noise spectroscopy |
| title | Multi-level quantum noise spectroscopy |
| title_full | Multi-level quantum noise spectroscopy |
| title_fullStr | Multi-level quantum noise spectroscopy |
| title_full_unstemmed | Multi-level quantum noise spectroscopy |
| title_short | Multi-level quantum noise spectroscopy |
| title_sort | multi level quantum noise spectroscopy |
| topic | General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
| url | https://hdl.handle.net/1721.1/141243 |
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