The dynamical-decoupling-based spatiotemporal noise spectroscopy
Here we demonstrate how the standard, temporal-only, dynamical-decoupling-based noise spectroscopy method can be extended to also encompass the spatial degree of freedom. This spatiotemporal spectroscopy utilizes a system of multiple qubits arranged in a line that are undergoing pure dephasing due t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab0ce7 |
| _version_ | 1797750177428144128 |
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| author | Jan Krzywda Piotr Szańkowski Łukasz Cywiński |
| author_facet | Jan Krzywda Piotr Szańkowski Łukasz Cywiński |
| author_sort | Jan Krzywda |
| collection | DOAJ |
| description | Here we demonstrate how the standard, temporal-only, dynamical-decoupling-based noise spectroscopy method can be extended to also encompass the spatial degree of freedom. This spatiotemporal spectroscopy utilizes a system of multiple qubits arranged in a line that are undergoing pure dephasing due to environmental noise. When the qubits are driven by appropriately coordinated sequences of π pulses the multi-qubit register becomes decoupled from all components of the noise, except for those characterized by frequencies and wavelengths specified by the pulse sequences. This allows for employment of the procedure for reconstruction of the two-dimensional spectral density that quantifies the power distribution among spatial and temporal harmonic components of the noise. |
| first_indexed | 2024-03-12T16:29:55Z |
| format | Article |
| id | doaj.art-e66efe9da2224d0cb2290a39ef6f6059 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:29:55Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-e66efe9da2224d0cb2290a39ef6f60592023-08-08T15:34:29ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121404303410.1088/1367-2630/ab0ce7The dynamical-decoupling-based spatiotemporal noise spectroscopyJan Krzywda0https://orcid.org/0000-0001-6449-1396Piotr Szańkowski1https://orcid.org/0000-0003-4306-8702Łukasz Cywiński2https://orcid.org/0000-0002-0162-7943Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, PL 02-668 Warsaw, PolandInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, PL 02-668 Warsaw, PolandInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, PL 02-668 Warsaw, PolandHere we demonstrate how the standard, temporal-only, dynamical-decoupling-based noise spectroscopy method can be extended to also encompass the spatial degree of freedom. This spatiotemporal spectroscopy utilizes a system of multiple qubits arranged in a line that are undergoing pure dephasing due to environmental noise. When the qubits are driven by appropriately coordinated sequences of π pulses the multi-qubit register becomes decoupled from all components of the noise, except for those characterized by frequencies and wavelengths specified by the pulse sequences. This allows for employment of the procedure for reconstruction of the two-dimensional spectral density that quantifies the power distribution among spatial and temporal harmonic components of the noise.https://doi.org/10.1088/1367-2630/ab0ce7open quantum systemsquantum controldynamical decoupling |
| spellingShingle | Jan Krzywda Piotr Szańkowski Łukasz Cywiński The dynamical-decoupling-based spatiotemporal noise spectroscopy New Journal of Physics open quantum systems quantum control dynamical decoupling |
| title | The dynamical-decoupling-based spatiotemporal noise spectroscopy |
| title_full | The dynamical-decoupling-based spatiotemporal noise spectroscopy |
| title_fullStr | The dynamical-decoupling-based spatiotemporal noise spectroscopy |
| title_full_unstemmed | The dynamical-decoupling-based spatiotemporal noise spectroscopy |
| title_short | The dynamical-decoupling-based spatiotemporal noise spectroscopy |
| title_sort | dynamical decoupling based spatiotemporal noise spectroscopy |
| topic | open quantum systems quantum control dynamical decoupling |
| url | https://doi.org/10.1088/1367-2630/ab0ce7 |
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