Noble gas, Alkali and alkaline atoms interacting with a gold surface

Grzegorz Lach, Maarten Dekieviet, Ulrich D. Jentschura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The attractive branch of the interaction potentials with the surface of gold have been computed for a large variety of atomic systems: the hydrogen atom, noble gases (He, Ne, Ar, Kr, Xe), alkali atoms (Li, Na, K, Rb, Cs) and alkaline atoms (Be, Mg, Ca, Sr, Ba). The results include highly accurate dynamic polarizabilities for the helium atom calculated using a variational method and explicitly correlated wavefunctions. For other atoms considered we used the data available in the literature. The interaction potentials include both the effects of retardation of the electromagnetic interactions and a realistic representation of the optical response function of gold (beyond the approximation of a perfect conductor). An explicit comparison of our result to the interaction between an atom and a perfect conductor is given.

Original languageEnglish
Pages (from-to)2337-2344
Number of pages8
JournalInternational Journal of Modern Physics A
Volume25
Issue number11
DOIs
Publication statusPublished - Apr 30 2010

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Keywords

  • Atom-surface interactions
  • Casimir forces
  • Dynamic polarizability
  • Gold
  • Helium
  • Quantum reflection
  • Retardation
  • Van der Waals forces

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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