Entanglement of a two-level atom papered in a finite trio-coherent state |
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Authors: | S Abdel-Khalek E M Khalil S I Ali |
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Institution: | (1) Mathematics Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt;(2) Mathematics Department, Faculty of Science, Al-Azher University, Nassr City, Cairo, 11884, Egypt |
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Abstract: | In this paper, we study the interaction between an effective two-level atom and a three-mode field. The atom and the field are initially in the excited state and finite dimensional trio-coherent state, respectively. For this sytem, we investigate the atomic inversion, the von Neumann entropy, and the atomic Wehrl entropy. We show that there is a connection between all of these quantities. Also, we prove that the atomic Wehrl entropy exhibits a temporal evolution similar to the von Neumann entropy. It is observed that the Stark shift parameter plays an important role on the evolution of these quantities. |
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