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Force acting on an atom and a classical oscillator in an electromagnetic field

  • Atoms, Molecules, Optics
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Abstract

The expression for the force exerted by the field on an atom and averaged over the field period is derived in quantum-mechanical perturbation theory, in which a quasi-monochromatic electromagnetic field plays the role of a perturbation. An approximate solution is obtained to the classical (Newton) equation of motion in the same field for a harmonic isotropic oscillator. In both problems, the expressions for the force acting on a particle are completely identical if they are written in terms of the polarizability (of the atom and the oscillator). These results conform with the data obtained in macroscopic electrodynamics for rarefied media.

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Correspondence to V. P. Makarov.

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Original Russian Text © V.P. Makarov, A.A. Rukhadze, 2010, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 138, No. 6, pp. 1011–1017.

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Makarov, V.P., Rukhadze, A.A. Force acting on an atom and a classical oscillator in an electromagnetic field. J. Exp. Theor. Phys. 111, 891–897 (2010). https://doi.org/10.1134/S1063776110120010

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  • DOI: https://doi.org/10.1134/S1063776110120010

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