Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases

  title={Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases},
  author={Mikhail Lemeshko and Bretislav Friedrich},
  journal={Physical Review A},
We present an analytic model of the refractive index for matter waves propagating through atomic or molecular gases. The model, which combines the Wentzel-Kramers-Brillouin (WKB) treatment of the long-range attraction with the Fraunhofer model treatment of the short-range repulsion, furnishes a refractive index in compelling agreement with recent experiments of Jacquey et al. [Phys. Rev. Lett. 98, 240405 (2007)] on Li atom matter waves passing through dilute noble gases. We show that the… 
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