Geodesic
Scattering of light by a quantum harmonic oscillator
Teoretičeskaâ i matematičeskaâ fizika, Tome 10 (1972) no. 3, pp. 388-398 
A. D. Gazazyan. Scattering of light by a quantum harmonic oscillator. Teoretičeskaâ i matematičeskaâ fizika, Tome 10 (1972) no. 3, pp. 388-398. http://geodesic.mathdoc.fr/item/TMF_1972_10_3_a6/
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     author = {A. D. Gazazyan},
     title = {Scattering of light by a quantum harmonic oscillator},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {388--398},
     year = {1972},
     volume = {10},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_10_3_a6/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

A study is made of the scattering of light by a quantum harmonic oscillator with the emission of a single photon. The second-quantization representation is adopted for both the incident and the emitted field. The unperturbed Hamiltonian of the quantum oscillator in a monochromatic field can be diagonalized; this corresponds to the existence of stationary states of the system consisting of the oscillator and the quantized monochromatic electromagnetic field. The concept of coherent states is introduced for such a system. The scattering of light i s considered by perturbation theory for the emitted field.

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