Protecting qubit coherence by spectrally engineered driving of the spin environment
Abstract Modern quantum technologies rely crucially on techniques to mitigate quantum decoherence; these techniques can be either passive, achieved for example via materials engineering, or active, typically achieved via pulsed monochromatic driving fields applied to the qubit. Using a solid-state d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-04-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-022-00560-0 |
| _version_ | 1817984888787173376 |
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| author | Maxime Joos Dolev Bluvstein Yuanqi Lyu David Weld Ania Bleszynski Jayich |
| author_facet | Maxime Joos Dolev Bluvstein Yuanqi Lyu David Weld Ania Bleszynski Jayich |
| author_sort | Maxime Joos |
| collection | DOAJ |
| description | Abstract Modern quantum technologies rely crucially on techniques to mitigate quantum decoherence; these techniques can be either passive, achieved for example via materials engineering, or active, typically achieved via pulsed monochromatic driving fields applied to the qubit. Using a solid-state defect spin coupled to a microwave-driven spin bath, we experimentally demonstrate a decoherence mitigation method based on spectral engineering of the environmental noise with a polychromatic drive waveform, and show that it outperforms monochromatic techniques. Results are in agreement with quantitative modeling, and open the path to active decoherence protection using custom-designed waveforms applied to the environment rather than the qubit. |
| first_indexed | 2024-04-13T23:50:23Z |
| format | Article |
| id | doaj.art-e970a9dcb62a4bff84181bf8cd61c914 |
| institution | Directory Open Access Journal |
| issn | 2056-6387 |
| language | English |
| last_indexed | 2024-04-13T23:50:23Z |
| publishDate | 2022-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj.art-e970a9dcb62a4bff84181bf8cd61c9142022-12-22T02:24:07ZengNature Portfolionpj Quantum Information2056-63872022-04-01811510.1038/s41534-022-00560-0Protecting qubit coherence by spectrally engineered driving of the spin environmentMaxime Joos0Dolev Bluvstein1Yuanqi Lyu2David Weld3Ania Bleszynski Jayich4Department of Physics, University of CaliforniaDepartment of Physics, University of CaliforniaDepartment of Physics, University of CaliforniaDepartment of Physics, University of CaliforniaDepartment of Physics, University of CaliforniaAbstract Modern quantum technologies rely crucially on techniques to mitigate quantum decoherence; these techniques can be either passive, achieved for example via materials engineering, or active, typically achieved via pulsed monochromatic driving fields applied to the qubit. Using a solid-state defect spin coupled to a microwave-driven spin bath, we experimentally demonstrate a decoherence mitigation method based on spectral engineering of the environmental noise with a polychromatic drive waveform, and show that it outperforms monochromatic techniques. Results are in agreement with quantitative modeling, and open the path to active decoherence protection using custom-designed waveforms applied to the environment rather than the qubit.https://doi.org/10.1038/s41534-022-00560-0 |
| spellingShingle | Maxime Joos Dolev Bluvstein Yuanqi Lyu David Weld Ania Bleszynski Jayich Protecting qubit coherence by spectrally engineered driving of the spin environment npj Quantum Information |
| title | Protecting qubit coherence by spectrally engineered driving of the spin environment |
| title_full | Protecting qubit coherence by spectrally engineered driving of the spin environment |
| title_fullStr | Protecting qubit coherence by spectrally engineered driving of the spin environment |
| title_full_unstemmed | Protecting qubit coherence by spectrally engineered driving of the spin environment |
| title_short | Protecting qubit coherence by spectrally engineered driving of the spin environment |
| title_sort | protecting qubit coherence by spectrally engineered driving of the spin environment |
| url | https://doi.org/10.1038/s41534-022-00560-0 |
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