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Lecture notes in physics

Interaction between strong radiation fields and two-level atoms: A canonical transformation approach

Franco Persico

Published Aug 19, 2008• 0 citations
Publisher
DOI
10.1007/bfb0120154

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A canonical transformation, which diagonalizes the single-mode radiation Hamiltonian in the rotating wave approximation, is exploited to dress a two-level atom by the strong monochromatic driving field in the resonance fluorescence phenomenon. Langevin equations of motion are obtained for dressed atomic operators, and their solutions yield the amplitude of waves scattered into the fluorescence field. The power spectrum of the scattered field is obtained from the first-order correlation functions between dressed atomic operators. The results of the present treatment are compared with others, and advantages and disadvantages of the present method are discussed.