مشخصات پژوهش

عنوان	Atom–field entanglement in the Jaynes Cummings model without rotating wave approximation
نوع پژوهش	مقاله چاپ‌شده
کلیدواژه‌ها	atom–photon interaction, Jaynes–Cummings model, quantum entanglement
چکیده	In this paper, we present a structure for obtaining the exact eigenfunctions and eigenvalues of the Jaynes–Cummings model (JCM) without the rotating wave approximation (RWA). We study the evolution of the system in the strong coupling region using the time evolution operator without RWA. The entanglement of the system without RWA is investigated using the Von Neumann entropy as an entanglement measure. It is interesting that in the weak coupling regime, the population of the atomic levels and Von Neumann entropy without RWA model shows a good agreement with the RWA whereas in strong coupling domain, the results of these two models are quite different.
پژوهشگران	مهدی میرزایی (فیزیک) (نفر اول)