The Population Inversion and the Entropy of a Moving Two-Level Atom in Interaction with a Quantized Field |
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| Authors: | D. A. M. Abo-Kahla M. Abdel-Aty A. Farouk |
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| Affiliation: | 1.Department of Mathematics, Faculty of Science,Taibah University,Madina,Saudi Arabia;2.Department of Mathematics, Faculty of Education,Ain Shams University,Roxy,Egypt;3.Deanship of Scientific Research and Graduate Studies,Applied Science University,Sitra,Bahrain;4.Sohag University,Sohag,Egypt;5.Department of Physics and Computer Science, Faculty of Science,Wilfrid Laurier University,Waterloo,Canada |
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| Abstract: | An atom with only two energy eigenvalues is described by a two-dimensional state space spanned by the two energy eigenstates is called a two-level atom. We consider the interaction between a two-level atom system with a constant velocity. An analytic solution of the systems which interacts with a quantized field is provided. Furthermore, the significant effect of the temperature on the atomic inversion, the purity and the information entropy are discussed in case of the initial state either an exited state or a maximally mixed state. Additionally, the effect of the half wavelengths number of the field-mode is investigated. |
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