An alternative derivation of the Wigner-Weisskopf approximation |
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| Authors: | D.J. Diestler H.Douglas Ladouceur |
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| Affiliation: | Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA |
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| Abstract: | The Wigner-Weisskopf approximation for the lineshape function for a two-level atom coupled to an electromagnetic field is derived by application of a mathematical approximation known as the “principle of averaging”. The present approach not only affords a new perspective, but also has some advantages over previous ones. |
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