Fock–Tani representation for surface-plasmon induced atomic transitions of an ion near a metallic surface

F.A. Gutierrez, H. Jouin, J. Díaz-Valdés and A.R. Matamala

Physica A: Statistical Mechanics and its Applications, 2006, vol. 359, issue C, 430-446

Abstract: In this work we report a second quantized representation for the collective interaction of a single charged slow ion (or atom) with a nearby metallic surface. The unitary Fock–Tani transformation decomposes the electron–surface plasmon interaction potential into a multicomponent potential operator which contains explicitly all the possible atomic transitions, for both ion–surface and atom–surface systems, induced by the coupling between metal electrons and surface-plasmons. The coefficient of each component corresponds to the matrix element for the given transition. In particular we obtain the ion velocity dependent matrix elements for the process of surface-plasmon ion neutralization at metallic surfaces a result which generalizes not only the one obtained within the fixed ion approximation but also the one obtained with the Galilean transformation approach.

Keywords: Fock–Tani representation; Surface-plasmons; Atomic transitions; Ion–surface interactions (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:359:y:2006:i:c:p:430-446

DOI: 10.1016/j.physa.2005.04.046

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