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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2009

Dispersive interactions between atoms and non planar surfaces

Résumé

We calculate the dispersive force between a ground state atom and a non planar surface. We present explicit results for a corrugated surface, derived from the scattering approach at first order in the corrugation amplitude. A variety of analytical results are derived in different limiting cases, including the van der Waals and Casimir-Polder regimes. We compute numerically the exact first-order dispersive potential for arbitrary separation distances and corrugation wavelengths, for a Rubidium atom on top of a silicon or gold corrugated surface. We discuss in detail the inadequacy of the proximity force approximation, and present a simple but adequate approximation for computing the potential.

Dates et versions

hal-00363751 , version 1 (24-02-2009)

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Riccardo Messina, Diego A. R. Dalvit, Paulo A. Maia Neto, Astrid Lambrecht, Serge Reynaud. Dispersive interactions between atoms and non planar surfaces. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2009, 80, pp.022119. ⟨10.1103/PhysRevA.80.022119⟩. ⟨hal-00363751⟩
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