Entanglement and quantum discord in the cavity QED models
We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes–Cummings model and the Tavis–Cummings model, which are well-established in cavity quantum electrodynamics. Through the resolution of the quantum master equation, we can derive the diss...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024172258 |
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| author | Hui-hui Miao Wanshun Li |
| author_facet | Hui-hui Miao Wanshun Li |
| author_sort | Hui-hui Miao |
| collection | DOAJ |
| description | We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes–Cummings model and the Tavis–Cummings model, which are well-established in cavity quantum electrodynamics. Through the resolution of the quantum master equation, we can derive the dissipative dynamics in open systems. To assess the extent of quantum correlation, several measures are introduced: von Neumann entropy, concurrence and quantum discord. The effects of initial entanglement and dissipation intensity on quantum discord are carefully examined. Furthermore, we examined the dynamics of quantum discord within the OH+ model. |
| format | Article |
| id | doaj-art-a2275dd8f9e94c46ad244ec76a1ef918 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-a2275dd8f9e94c46ad244ec76a1ef9182025-01-17T04:50:28ZengElsevierHeliyon2405-84402025-01-01111e41194Entanglement and quantum discord in the cavity QED modelsHui-hui Miao0Wanshun Li1Corresponding authors.; Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University, Vorobyovy Gory 1, Moscow, 119991, RussiaCorresponding authors.; Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University, Vorobyovy Gory 1, Moscow, 119991, RussiaWe investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes–Cummings model and the Tavis–Cummings model, which are well-established in cavity quantum electrodynamics. Through the resolution of the quantum master equation, we can derive the dissipative dynamics in open systems. To assess the extent of quantum correlation, several measures are introduced: von Neumann entropy, concurrence and quantum discord. The effects of initial entanglement and dissipation intensity on quantum discord are carefully examined. Furthermore, we examined the dynamics of quantum discord within the OH+ model.http://www.sciencedirect.com/science/article/pii/S2405844024172258EntanglementQuantum discordEntropyConcurrenceFinite-dimensional QED |
| spellingShingle | Hui-hui Miao Wanshun Li Entanglement and quantum discord in the cavity QED models Heliyon Entanglement Quantum discord Entropy Concurrence Finite-dimensional QED |
| title | Entanglement and quantum discord in the cavity QED models |
| title_full | Entanglement and quantum discord in the cavity QED models |
| title_fullStr | Entanglement and quantum discord in the cavity QED models |
| title_full_unstemmed | Entanglement and quantum discord in the cavity QED models |
| title_short | Entanglement and quantum discord in the cavity QED models |
| title_sort | entanglement and quantum discord in the cavity qed models |
| topic | Entanglement Quantum discord Entropy Concurrence Finite-dimensional QED |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024172258 |
| work_keys_str_mv | AT huihuimiao entanglementandquantumdiscordinthecavityqedmodels AT wanshunli entanglementandquantumdiscordinthecavityqedmodels |