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Interaction between radiation and a two-level system: Kinetic equation up to order λ6 and applications

par Henin, Françoise ;de Haan, Michel
Référence Physica, 40, 3, page (399-421)
Publication Publié, 1968-12

Article révisé par les pairs

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Résumé :

This paper is one of a series devoted to the discussion, by means of kinetic equations, of the problem of interaction between radiation and matter. The model used for matter is the Wigner-Weisskopf two level model. The kinetic equation for quasiparticles (i.e. atom in perturbed levels) is given, without proof, up to order λ6 (The derivation may be found in another paper). As λ2 and λ4 contributions have already been discussed in another work, we concentrate ourselves on the discussion of the λ6 (3-photon) scattering operator. The kinetic equation is then applied to a discussion of spontaneous emission and resonance light scattering. The connection with the usual Lorentz formula is then discussed. © 1968.