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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2010

Casimir-Polder interaction between an atom and a dielectric grating

Résumé

We develop the scattering approach to calculate the exact dispersive Casimir-Polder potential between a ground-state atom and a rectangular grating. Our formalism allows, in principle, for arbitrary values of the grating amplitude and period, and of the atom-grating distance. We compute numerically the potential for a Rb atom on top of a Si grating and compare the results with the potential for a flat surface taken at the local atom-surface distance (proximity force approximation). Except for very short separation distances, the potential is nearly sinusoidal along the direction transverse to the grooves.

Dates et versions

hal-00523126 , version 1 (04-10-2010)

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Ana M. Contreras-Reyes, Romain Guérout, Paulo A. Maia Neto, Diego A. R. Dalvit, Astrid Lambrecht, et al.. Casimir-Polder interaction between an atom and a dielectric grating. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2010, 82, pp.052517. ⟨10.1103/PhysRevA.82.052517⟩. ⟨hal-00523126⟩
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