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Dressed-state approach to a simple radiating atom

G. Flores-Hidalgo·A. P. C. Malbouisson
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Abstract

We consider a system consisting of an atom in the dipole approximation, coupled to the electromagnetic field. Using recently introduced renormalized coordinates and dressed states, we give a non-perturbative solution to the atom radiation process. From this formalism a non-exponential decay law naturally emerges. However, at least for low frequencies and weak coupling, there is only a very small, practically non-detectable, deviation from a purely exponential decay, in agreement with all previous results in the literature.

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G. Flores-Hidalgo, A. P. C. Malbouisson. 2005-09-21. Dressed-state approach to a simple radiating atom. https://doi.org/10.1016/j.physleta.2005.01.066

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