Above-barrier reflection of cold atoms by resonant laser light within the Gross-Pitaevskii approximation

@article{Ishkhanyan2009AbovebarrierRO,
  title={Above-barrier reflection of cold atoms by resonant laser light within the Gross-Pitaevskii approximation},
  author={H. A. Ishkhanyan and Vladimir P. Krainov},
  journal={Laser Physics},
  year={2009},
  volume={19},
  pages={1729-1734}
}
Above-barrier reflection of cold alkali atoms by resonant laser light was considered analytically within the Gross-Pitaevskii approximation. Correction for the reflection coefficient because of a weak nonlinearity of the stationary Schrödinger equation has been derived using multiscale analysis as a form of perturbation theory. The nonlinearity adds spatial harmonics to linear incident and reflecting waves. It was shown that the role of nonlinearity increases when the kinetic energy of an atom… 
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