Coherent destruction of tunneling and dark Floquet state
We study a system of three coherently coupled states, where one state is shifted periodically against the other two. We discover that this system possesses a dark Floquet state that has zero quasi-energy and negligible population at the intermediate state. This dark Floquet state manifests itself dy...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/16/1/013007 |
| _version_ | 1797751515746664448 |
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| author | Xiaobing Luo Liping Li Li You Biao Wu |
| author_facet | Xiaobing Luo Liping Li Li You Biao Wu |
| author_sort | Xiaobing Luo |
| collection | DOAJ |
| description | We study a system of three coherently coupled states, where one state is shifted periodically against the other two. We discover that this system possesses a dark Floquet state that has zero quasi-energy and negligible population at the intermediate state. This dark Floquet state manifests itself dynamically in terms of the suppression of inter-state tunneling, a phenomenon known as coherent destruction of tunneling (CDT). Owing to its different origin from the CDT found in a two-state-driven system, we call it dark CDT. At a high-frequency limit for the periodic driving, this Floquet state reduces to the well-known dark state. Our results can be generalized to systems with more states and be verified with easily implemented experiments within the current technologies. |
| first_indexed | 2024-03-12T16:49:36Z |
| format | Article |
| id | doaj.art-69f0392baf114b7ab77e9068afd2c861 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:49:36Z |
| publishDate | 2014-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-69f0392baf114b7ab77e9068afd2c8612023-08-08T11:24:47ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116101300710.1088/1367-2630/16/1/013007Coherent destruction of tunneling and dark Floquet stateXiaobing Luo0Liping Li1Li You2Biao Wu3Department of Physics, Jinggangshan University , Ji'an 343009, People's Republic of China; Department of Physics, Tsinghua University , Beijing 100084, People's Republic of ChinaDepartment of Physics, Tsinghua University , Beijing 100084, People's Republic of China; Information Engineer School, Huanghe Science and Technology College, Zhengzhou 450006, People's Republic of ChinaDepartment of Physics, Tsinghua University , Beijing 100084, People's Republic of China; Collaborative Innovation Center of Quantum Matter, Beijing, People's Republic of ChinaInternational Center for Quantum Materials, Peking University , Beijing 100871, People's Republic of China; Collaborative Innovation Center of Quantum Matter, Beijing, People's Republic of ChinaWe study a system of three coherently coupled states, where one state is shifted periodically against the other two. We discover that this system possesses a dark Floquet state that has zero quasi-energy and negligible population at the intermediate state. This dark Floquet state manifests itself dynamically in terms of the suppression of inter-state tunneling, a phenomenon known as coherent destruction of tunneling (CDT). Owing to its different origin from the CDT found in a two-state-driven system, we call it dark CDT. At a high-frequency limit for the periodic driving, this Floquet state reduces to the well-known dark state. Our results can be generalized to systems with more states and be verified with easily implemented experiments within the current technologies.https://doi.org/10.1088/1367-2630/16/1/013007 |
| spellingShingle | Xiaobing Luo Liping Li Li You Biao Wu Coherent destruction of tunneling and dark Floquet state New Journal of Physics |
| title | Coherent destruction of tunneling and dark Floquet state |
| title_full | Coherent destruction of tunneling and dark Floquet state |
| title_fullStr | Coherent destruction of tunneling and dark Floquet state |
| title_full_unstemmed | Coherent destruction of tunneling and dark Floquet state |
| title_short | Coherent destruction of tunneling and dark Floquet state |
| title_sort | coherent destruction of tunneling and dark floquet state |
| url | https://doi.org/10.1088/1367-2630/16/1/013007 |
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