Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction
Abstract A great many efforts are dedicated to developing noise reduction and mitigation methods. One remarkable achievement in this direction is dynamical decoupling (DD), although its applicability remains limited because fast control is required. Using resource theoretic tools, we show that non-M...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-10-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-023-00774-w |
| _version_ | 1797557432969330688 |
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| author | Graeme D. Berk Simon Milz Felix A. Pollock Kavan Modi |
| author_facet | Graeme D. Berk Simon Milz Felix A. Pollock Kavan Modi |
| author_sort | Graeme D. Berk |
| collection | DOAJ |
| description | Abstract A great many efforts are dedicated to developing noise reduction and mitigation methods. One remarkable achievement in this direction is dynamical decoupling (DD), although its applicability remains limited because fast control is required. Using resource theoretic tools, we show that non-Markovianity is a resource for noise reduction, raising the possibility that it can be leveraged for noise reduction where traditional DD methods fail. We propose a non-Markovian optimisation technique for finding DD pulses. Using a prototypical noise model, we numerically demonstrate that our optimisation-based methods are capable of drastically improving the exploitation of temporal correlations, extending the timescales at which noise suppression is viable by at least two orders of magnitude, compared to traditional DD which does not use any knowledge of the non-Markovian environment. Importantly, the corresponding tools are built on operational grounds and can be easily implemented to reduce noise in the current generation of quantum devices. |
| first_indexed | 2024-03-10T17:16:58Z |
| format | Article |
| id | doaj.art-21f6c0594eac4dec8b6eea68a225c913 |
| institution | Directory Open Access Journal |
| issn | 2056-6387 |
| language | English |
| last_indexed | 2024-03-10T17:16:58Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj.art-21f6c0594eac4dec8b6eea68a225c9132023-11-20T10:28:12ZengNature Portfolionpj Quantum Information2056-63872023-10-019111310.1038/s41534-023-00774-wExtracting quantum dynamical resources: consumption of non-Markovianity for noise reductionGraeme D. Berk0Simon Milz1Felix A. Pollock2Kavan Modi3School of Physics and Astronomy, Monash UniversitySchool of Physics, Trinity College DublinSchool of Physics and Astronomy, Monash UniversitySchool of Physics and Astronomy, Monash UniversityAbstract A great many efforts are dedicated to developing noise reduction and mitigation methods. One remarkable achievement in this direction is dynamical decoupling (DD), although its applicability remains limited because fast control is required. Using resource theoretic tools, we show that non-Markovianity is a resource for noise reduction, raising the possibility that it can be leveraged for noise reduction where traditional DD methods fail. We propose a non-Markovian optimisation technique for finding DD pulses. Using a prototypical noise model, we numerically demonstrate that our optimisation-based methods are capable of drastically improving the exploitation of temporal correlations, extending the timescales at which noise suppression is viable by at least two orders of magnitude, compared to traditional DD which does not use any knowledge of the non-Markovian environment. Importantly, the corresponding tools are built on operational grounds and can be easily implemented to reduce noise in the current generation of quantum devices.https://doi.org/10.1038/s41534-023-00774-w |
| spellingShingle | Graeme D. Berk Simon Milz Felix A. Pollock Kavan Modi Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction npj Quantum Information |
| title | Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction |
| title_full | Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction |
| title_fullStr | Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction |
| title_full_unstemmed | Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction |
| title_short | Extracting quantum dynamical resources: consumption of non-Markovianity for noise reduction |
| title_sort | extracting quantum dynamical resources consumption of non markovianity for noise reduction |
| url | https://doi.org/10.1038/s41534-023-00774-w |
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