Floquet engineering to entanglement protection of distant nitrogen vacancy centers
It remains challenging to preserve entanglement between distant solid-state qubits with high-fidelity, such as nitrogen vacancy centers (NVCs). We propose a Floquet engineering strategy to protect the maximal entanglement between two weakly interacting NVCs separated in long spatial distance by loca...
| 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/aaf8f4 |
| _version_ | 1797750240947732480 |
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| author | W L Yang W L Song Jun-Hong An M Feng D Suter Jiangfeng Du |
| author_facet | W L Yang W L Song Jun-Hong An M Feng D Suter Jiangfeng Du |
| author_sort | W L Yang |
| collection | DOAJ |
| description | It remains challenging to preserve entanglement between distant solid-state qubits with high-fidelity, such as nitrogen vacancy centers (NVCs). We propose a Floquet engineering strategy to protect the maximal entanglement between two weakly interacting NVCs separated in long spatial distance by locally applying periodic strong driving on the NVCs. It is found that entanglement of the Floquet states of the NVCs resonantly reaches its maximum during the whole driving period at certain values of the driving parameters. Our analysis reveals that it is the occurrence of the avoided level crossing in the Floquet quasienergy spectrum which results in such entanglement resonance. The dissipation effect on the generated entanglement has also been analyzed. Our results may be of both theoretical and experimental interests in exploring the long-lasting entanglement between weakly interacting spins to long distances in realistic environments. |
| first_indexed | 2024-03-12T16:29:46Z |
| format | Article |
| id | doaj.art-c33ceb5e2ed449c283c86b95d1f432eb |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:29:46Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-c33ceb5e2ed449c283c86b95d1f432eb2023-08-08T15:33:22ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121101300710.1088/1367-2630/aaf8f4Floquet engineering to entanglement protection of distant nitrogen vacancy centersW L Yang0W L Song1Jun-Hong An2https://orcid.org/0000-0002-3475-0729M Feng3D Suter4Jiangfeng Du5State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, People’s Republic of ChinaState Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, People’s Republic of ChinaSchool of Physical Science and Technology, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaState Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, People’s Republic of ChinaFakultät Physik, Technische Universität Dortmund , D-44221 Dortmund, GermanyCAS Key Laboratory of Microscale Magnetic Resonance and Department of Modern Physics, University of Science and Technology of China , Hefei 230026, People’s Republic of China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei 230026, People’s Republic of China; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei 230026, People’s Republic of ChinaIt remains challenging to preserve entanglement between distant solid-state qubits with high-fidelity, such as nitrogen vacancy centers (NVCs). We propose a Floquet engineering strategy to protect the maximal entanglement between two weakly interacting NVCs separated in long spatial distance by locally applying periodic strong driving on the NVCs. It is found that entanglement of the Floquet states of the NVCs resonantly reaches its maximum during the whole driving period at certain values of the driving parameters. Our analysis reveals that it is the occurrence of the avoided level crossing in the Floquet quasienergy spectrum which results in such entanglement resonance. The dissipation effect on the generated entanglement has also been analyzed. Our results may be of both theoretical and experimental interests in exploring the long-lasting entanglement between weakly interacting spins to long distances in realistic environments.https://doi.org/10.1088/1367-2630/aaf8f4quantum entanglementstrong periodical drivingnitrogen vacancy center |
| spellingShingle | W L Yang W L Song Jun-Hong An M Feng D Suter Jiangfeng Du Floquet engineering to entanglement protection of distant nitrogen vacancy centers New Journal of Physics quantum entanglement strong periodical driving nitrogen vacancy center |
| title | Floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| title_full | Floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| title_fullStr | Floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| title_full_unstemmed | Floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| title_short | Floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| title_sort | floquet engineering to entanglement protection of distant nitrogen vacancy centers |
| topic | quantum entanglement strong periodical driving nitrogen vacancy center |
| url | https://doi.org/10.1088/1367-2630/aaf8f4 |
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