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The light pressure force and the friction and diffusion coefficients for atoms in a resonant nonuniformly polarized laser field

  • Atoms, Spectra, Radiation
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Abstract

The motion of slow atoms with degenerate energy levels in a resonant, nonuniformly polarized laser field is described by the Fokker-Planck equation for the atomic distribution function in phase space in terms of the semiclassical approach. Field gradient expansions are used for the spatially nonuniform coefficients of the equation. For closed atomic transitions J g =J→J e =J+1 (J g and J e are the total angular momenta of the ground and excited states, respectively), new analytical results are presented for the light pressure force and the friction and diffusion coefficients in momentum space. These results allow the kinetic effects (laser cooling, localization in optical potential wells, etc.) in a field of arbitrary one-, two-, or three-dimensional configuration to be investigated. In several cases, the new contributions to the friction coefficient are interpreted qualitatively.

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Authors and Affiliations

  1. Maritime State University, Vladivostok, 690059, Russia

    A. V. Bezverbnyi

  2. Novosibirsk State University, Novosibirsk, 630090, Russia

    O. N. Prudnikov, A. V. Taichenachev, A. M. Tumaikin & V. I. Yudin

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  1. A. V. Bezverbnyi
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  2. O. N. Prudnikov
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  3. A. V. Taichenachev
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  4. A. M. Tumaikin
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  5. V. I. Yudin
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__________

Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 123, No. 3, 2003, pp. 437–456.

Original Russian Text Copyright © 2003 by Bezverbnyi, Prudnikov, Taichenachev, Tumaikin, Yudin.

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Bezverbnyi, A.V., Prudnikov, O.N., Taichenachev, A.V. et al. The light pressure force and the friction and diffusion coefficients for atoms in a resonant nonuniformly polarized laser field. J. Exp. Theor. Phys. 96, 383–401 (2003). https://doi.org/10.1134/1.1567411

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  • DOI: https://doi.org/10.1134/1.1567411

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