Entanglement and quantum discord in the cavity QED models

Авторы: Hui-hui Miao, Wanshun Li
Журнал: Heliyon
Том: 11
Номер: 1
Год издания: 2025
Издательство: Elsevier Science Publishing Company, Inc.
Местоположение издательства: Нидерланды
Первая страница: e41194
DOI: 10.1016/j.heliyon.2024.e41194
Аннотация: 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 $\rm{OH}^+$ model.
Добавил в систему: Мяо Хуэйхуэй

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